1



                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D
                    Under the Securities Exchange Act of 1934
                                (Amendment No. 5)

                           ENVIRODYNE INDUSTRIES, INC.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                     Common Stock, par value $0.01 per share
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    294037205
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                           Joseph L. von Rosenberg III
        Executive Vice President, General Counsel and Corporate Secretary
                               ZAPATA CORPORATION
                         1717 St. James Place, Suite 550
                              Houston, Texas 77056
                                 (713) 940-6100
- --------------------------------------------------------------------------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                                 April 18, 1997                                 
- --------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)



If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Note: Six copies of this statement, including all exhibits, should be filed
with the Commission.  See Rule 13d-1(a) for other parties to whom copies are to
be sent.





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INTRODUCTORY NOTE.

              This Amendment No. 5 to Schedule 13D is being filed on behalf of
Zapata Corporation, a Delaware corporation ("Zapata"), to supplement certain
information set forth in the Schedule 13D relating to securities of Envirodyne
Industries, Inc. (the "Issuer") originally filed by Zapata on August 17, 1995,
as amended by Amendments No. 1, 2, 3 and 4 to Schedule 13D filed on June 21,
1996, March 10, 1997, March 31, 1997 and April 18, 1997, respectively.

ITEM 4.       PURPOSE OF TRANSACTION

       Item 4 to the Schedule 13D is hereby supplemented as follows:

       On April 18, 1997, Zapata filed a complaint against the Issuer and
certain of its directors in the United States District Court for the Southern
District of Texas, Houston Division.  An amended complaint was filed
on April 21, 1997.  A copy of the amended complaint is attached to this
Amendment No. 5 to Schedule 13D as Exhibit 99.4.

       In the amended complaint, Zapata alleges that the Issuer's proxy
materials for use at the 1997 Annual Meeting of Stockholders of the Issuer (the
"1997 Annual Meeting") inappropriately attempt to use the discretionary
authority permitted by rules under the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), to defeat Zapata's proposal (the "Rights
Proposal") recommending that the Board of Directors of the Issuer take
appropriate action to redeem the rights issued under or otherwise terminate the
Rights Agreement between the Issuer and Harris Trust & Savings Bank dated as of
June 26, 1996 (the "Rights Plan").  The amended complaint states that the
attempted improper use of authority arises from the fact that the proxy card
proposed to be used by the Board in soliciting proxies for the 1997 Annual
Meeting fails to offer stockholders the opportunity to state how they wish to
vote on the Rights Proposal, and seeks injunctive relief against the use of
discretionary authority to vote proxies against the Rights Proposal.

       Zapata also alleges in the amended complaint that the Issuer has violated
Exchange Act rules governing proxy solicitations as a result of (i)
discrepancies between certain solicitation materials filed with the Commission
and those disseminated to the public and (ii) the fact that certain solicitation
materials not approved by the Board are characterized in the Issuer's
solicitation materials as "On Behalf of the Board of Directors."  In the amended
complaint, Zapata also seeks to invalidate provisions of the Rights Plan
requiring certain matters to be approved by "continuing directors" so that any
action now required to be approved by continuing directors may be taken with the
approval of the Board.  In addition, Zapata requests declaratory relief with
respect to its filings with the Commission pursuant to Section 13(d) of the
Exchange Act regarding the Issuer's securities and pursuant to Section 14(a) of
the Exchange Act regarding solicitation of proxies for use at the 1997 Annual
Meeting.





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ITEM 7.       MATERIAL TO BE FILED AS EXHIBITS

          Exhibit Number                   Document Description
          --------------                   --------------------
              99.4                         Amended Complaint filed by Zapata
                                           Corporation against Robert N.
                                           Dangremond, F. Edward Gustafson,
                                           Michael E. Heisley, Mark D. Senkpiel
                                           and Envirodyne Industries, Inc. in
                                           the United States District Court for
                                           the Southern District of Texas,
                                           Houston Division.





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              After reasonable inquiry and to the best of the undersigned's
knowledge and belief, the undersigned certifies that the information set forth
in this statement is true, complete and correct.

Date: April 22, 1997.

                                        ZAPATA CORPORATION



                                        By:     /s/ JOSEPH L. VON ROSENBERG III
                                                --------------------------------
                                                Joseph L. von Rosenberg III
                                                Executive Vice President, 
                                                General Counsel and Corporate 
                                                Secretary 





                               Page 4 of 5 Pages
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                                 EXHIBIT INDEX


Exhibit Number Document Description -------------- -------------------- 99.4 Amended Complaint filed by Zapata Corporation against Robert N. Dangremond, F. Edward Gustafson, Michael E. Heisley, Mark D. Senkpiel and Envirodyne Industries, Inc. in the United States District Court for the Southern District of Texas, Houston Division.
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                                                             EXHIBIT 99.4


                      IN THE UNITED STATES DISTRICT COURT
                       FOR THE SOUTHERN DISTRICT OF TEXAS
                                HOUSTON DIVISION

ZAPATA CORPORATION,                    )
                                       )
                     Plaintiff,        )
                                       )
V.                                     )          Civil Action No. H-97-1329
                                       )
ROBERT N. DANGREMOND,                  )
F. EDWARD GUSTAFSON,                   )
MICHAEL E. HEISLEY,                    )
MARK D. SENKPIEL, and                  )
ENVIRODYNE INDUSTRIES, INC.,           )
                                       )
                     Defendants.       )

                               AMENDED COMPLAINT

              Plaintiff Zapata Corporation alleges, upon knowledge with respect
to itself and its own acts, and upon information and belief with respect to all
other persons and matters, as follows:

                              Nature of the Action

              1.     Zapata brings this action to enjoin defendant Envirodyne
Industries, Inc. and certain of its directors from continued violation of the
federal securities laws and of their fiduciary duties to Zapata.  Zapata owns
over 40 percent of Envirodyne's common stock.  The two are currently engaged in
a proxy contest regarding the election of nominees to seats on the Envirodyne
board of directors (the "Board") and a proposal to redeem the Envirodyne
"poison pill."

              2.     Envirodyne's definitive proxy statement indicates that its
Board has nominated five individuals to fill five seats on the Board.  Zapata
proposes to solicit proxies in favor of the election of three individuals (none
of whom are on the Envirodyne management slate) to serve as members of the
Board.  Two of Zapata's nominees are currently members of the Board.  Zapata's
preliminary proxy statement also proposes that the Board take steps to redeem
the poison pill rights
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issued under the June 26, 1996 rights agreement between Envirodyne and Harris
Trust & Savings Bank (the "Poison Pill").

              3.     In the course of its proxy solicitation, Envirodyne is
making improper use of the discretionary authority permitted under the rules
governing proxy solicitations and has violated SEC rules.  Envirodyne's proxy
cards fail to offer stockholders the opportunity to state how they wish to vote
on Zapata's proposal regarding redemption of the Poison Pill.  Instead,
Envirodyne contemplates using the discretionary authority as a means to vote
all proxies received by management against Zapata's proposal to redeem the
Poison Pill.  Envirodyne has also disseminated proxy solicitation material that
purports to represent the position of the entire Board, when at least two
directors, in fact, do not concur with the positions expressed in that
material.

              4.     Zapata seeks injunctive relief to remedy the misleading
nature of these violations of the securities laws by Envirodyne.  In addition,
Zapata seeks declaratory relief to invalidate portions of the Poison Pill and
to confirm Zapata's own compliance with the requirements of the securities
laws.

                                    Parties

              5.     Plaintiff Zapata is a Delaware corporation with its
principal place of business in this District.  At all times while it has been
an Envirodyne stockholder, Zapata has been headquartered in Houston, Texas.
Its current address is 1717 St. James Place, Suite 500, Houston, Texas 77056.

              6.     Defendants are directors of Envirodyne, along with the
company itself.

              7.     Robert N. Dangremond is a principal with Jay Alix &
Associates, a consulting and accounting firm.  Mr. Dangremond has served as a
director of Envirodyne since 1993.  He may





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be served with process at Envirodyne's business address: 701 Harger Road, Oak
Brook, Illinois and/or at his home.

              8.     F. Edward Gustafson is Chairman of the Board, President
and Chief Executive Officer of Envirodyne.  Mr. Gustafson has served as a
director of Envirodyne since 1993.  He may be served with process at
Envirodyne's business address: 701 Harger Road, Oak Brook, Illinois and/or at
his home.

              9.     Michael E. Heisley serves as the Chief Executive Officer
of Heico Acquisitions, an investment holding company.  Mr. Heisley has served
as a director of Envirodyne since 1993.  He may be served with process at
Envirodyne's business address: 701 Harger Road, Oak Brook, Illinois and/or at
his home.

              10.    Mark D. Senkpiel is Senior Vice President of Trust Company
of the West, an investment management firm.  Mr. Senkpiel has served as a
director of Envirodyne since 1993.  He may be served with process at
Envirodyne's business address: 701 Harger Road, Oak Brook, Illinois and/or at
his home.

              11.    Envirodyne is a Delaware corporation with its principal
place of business in Illinois.  It may be served with process at its business
address, 701 Harger Road, Oak Brook, Illinois.

                             Jurisdiction and Venue

              12.    The Court has jurisdiction over this action pursuant to 28
U.S.C. Sections  1331, 1331 & 2201, Section 27 of the Securities Exchange Act
of 1934 (the "Exchange Act"), 15 U.S.C. Section  78aa, and principles of
supplemental jurisdiction, because acts and transactions forming the basis for
these claims have occurred and, unless remedied, will continue to occur in this
District.





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              13.    Venue is proper in this District pursuant to 28 U.S.C.
Section  1391 and Section 27 of the Exchange Act, 15 U.S.C. Section  78aa,
because acts and transactions forming the basis for these claims have occurred
and, unless remedied, will continue to occur in this District.

                            Background of the Action

              14.    Envirodyne is a company with major interests in food
packaging and the food supplies industry.  It markets a variety of products
including cellulosic casings used to package processed meats and specialty
plastic films used to package and preserve food products.

              15.    Zapata's principal business activities include marine
protein operations, food services operations conducted through Envirodyne, and
oil and gas operations in Bolivia.  Zapata is the beneficial owner of 5,877,304
shares of the common stock of Envirodyne.  These shares constitute
approximately 40.4 percent of the outstanding shares of Envirodyne common
stock.  Two directors of Zapata, Malcolm I. Glazer and Avram A. Glazer, are
currently members of Envirodyne's seven-member Board.

              16.    Envirodyne's Annual Meeting of Stockholders of the Company
(the "Annual Meeting") is scheduled for Friday, May 16, 1997.  Envirodyne's
proxy statement states that at a Board meeting on March 19, 1997, the Board
voted to reduce its size from seven to five members.  At the same meeting, a
majority of the Board also approved a slate of five directors to be voted on at
the Annual Meeting that did not include any Zapata designees.  On March 27,
1997, Zapata notified Envirodyne that it would be proposing its own nominees to
the Envirodyne Board and would be bringing forth a proposal recommending that
the Board redeem the Poison Pill.





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              17.    On April 18, 1997, Envirodyne filed its definitive proxy
statement (attached hereto as Exh. 1).  Envirodyne has also filed additional
proxy soliciting material with the SEC (attached hereto as Exh. 2).

              18.    Envirodyne's proxy statement solicits support for the
five-member slate of directors settled upon at the Board's March 19 meeting.
The proxy statement also notes Zapata's proposal challenging the Poison Pill.
In response to this challenge, the Envirodyne proxy statement does not solicit
voting instructions from stockholders regarding voting on any Zapata proposal.
Rather, the statement merely comments:  "The persons designated as proxies on
the enclosed proxy card intend to vote against the Zapata Proposal.  If any
other matters properly come before the Annual Meeting, the persons designated
as proxies on the enclosed proxy card will vote in accordance with their
judgment on such matters."

              19.    Zapata filed its preliminary proxy statement on April 18,
1997 (attached hereto as Exh. 3).  The Zapata statement solicits support for
three nominees to the Board.  It also proposes that the Board redeem or
otherwise terminate the Poison Pill.  As explained in Zapata's preliminary
proxy statement, the Poison Pill was enacted by the Board on June 26, 1996,
over the objection of Malcolm and Avram Glazer.  The Poison Pill effectively
sets a ceiling for Zapata's beneficial ownership of Envirodyne common stock at
41 percent, unless Zapata makes a tender or exchange offer for all the
outstanding shares of common stock of Envirodyne on terms approved by a
majority of Envirodyne's directors not associated with Zapata.

                             First Cause of Action
            (Abuse of Discretionary Authority under the Proxy Rules)

              20.    Zapata realleges the allegations in the preceding
paragraphs of this complaint.





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              21.    Envirodyne's proxy materials inappropriately attempt to
use the discretionary authority accorded the company under Exchange Act Rule
14a-4(c) to defeat Zapata's proposal regarding the Poison Pill.  Envirodyne's
proxy materials do not offer those who fill out proxy cards an opportunity to
direct voting regarding Zapata's proposal to redeem or otherwise terminate the
Poison Pill.  In particular, the proxy card itself does not specifically list
the Zapata proposal and give stockholders an opportunity to vote "for" or
"against" or "abstain," as required by Rule 14a-4(a) & (b).  Indeed, the proxy
card itself provides no indication that this critical issue is even to be
addressed at the Annual Meeting.  Instead, defendants apparently plan to rely
on the discretionary authority conferred by Rule 14a-4(c) as the mechanism for
allowing Envirodyne to vote all proxies solicited by it against Zapata's
proposal.

              22.    Rule 14a-4(c) does confer discretionary voting authority
to the holders of a proxy in specified limited circumstances, none of which
apply to Zapata's proposal.  In particular, such discretionary authority does
not extend to situations where the issue is the subject of an opposing proxy
solicitation.  Zapata's preliminary proxy materials place at issue the question
of redeeming the Poison Pill and Zapata's proxies do solicit direction
regarding how proxies are to be voted on that question.  Envirodyne's reliance
on discretionary authority to cast proxies it solicits against the Zapata
proposal violates SEC proxy rules.

              23.    Envirodyne must be enjoined from using discretionary
authority under Rule 14a-4(c) to cast proxies it solicits against the Zapata
proposal.  Only proxy cards that actually solicit voting instructions from
stockholders should be allowed to be voted on this proposal.





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                             Second Cause of Action
               (Misleading Statements in Solicitation Materials)

              24.    Zapata realleges the allegations in the preceding
paragraphs of this complaint.

              25.    The solicitation materials Envirodyne has filed include a
misleading press release dated April 8, 1997.  That press release describes
Envirodyne's efforts to deprive Zapata of director positions on the Board
(attached hereto as Exh. 2).

              26.    The April 8 press release also includes the text of a
letter purportedly sent to Malcolm I. Glazer from defendant Gustafson,
purportedly representing the Board.  The inclusion of this letter violates the
provisions of the proxy rules under the Exchange Act in two respects.

              27.    First, Envirodyne has disseminated at least two distinct
versions of the letter.  Another version of the same April 8 press release
purports to include the same letter (attached hereto as Exh. 4).  Yet, this
(apparently) earlier version of the April 8 press release has a different
version of the Gustafson letter.  This earlier version includes several
additional pejorative comments regarding the conduct of Zapata and Malcolm
Glazer.  Envirodyne apparently felt it necessary to excise these comments from
the letter, however, before formally filing it with the SEC, even though the
more pejorative version of the letter had been publicly disseminated.

              28.    Second, both versions of the Gustafson letter suffer from
the same misleading defect:  both purport to reflect a letter written by
Gustafson "On Behalf of the Board of Directors" of Envirodyne.  The letter was
never approved by the Board.  Malcolm and Avram Glazer were neither consulted
regarding the contents of the letter nor agreed with the representations
contained in the letter, notwithstanding the fact that they were and remain
members of the Board.





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              29.    These actions by Envirodyne violate Rule 14a-9 and Rule
14a-11(c).  Envirodyne published one version of its letter to the public and
then filed a different version of that letter with the SEC, yet neglected to
note the differences in content between the publicly disseminated letter and
the officially filed one.  This failure to delineate between different versions
of the same material complicates monitoring of Envirodyne's actions by the SEC,
Zapata, and interested stockholders.  Moreover, the defendant Envirodyne
directors cannot be allowed to represent themselves as speaking for the entire
Board, particularly when they are deliberately and directly attacking other
Board members.  Such actions misrepresent to the voting stockholders the actual
position of the full Board regarding issues to be decided at the Annual
Meeting.

                             Third Cause of Action
     (Invalidation of the "Continuing Directors" Clause of the Poison Pill)

              30.    Zapata realleges the allegations in the preceding
paragraphs of this complaint.

              31.    Envirodyne's Poison Pill effectively eliminates the
ability of Zapata to acquire additional stock in Envirodyne for any reason.
Zapata is currently the beneficial owner of 40.4 percent of Envirodyne's common
stock.  The Poison Pill contains a triggering threshold of 41 percent.  This
threshold level means that Zapata cannot pursue the acquisition of additional
Envirodyne stock without risking triggering the Poison Pill.  Indeed, such a
restriction on Zapata's options was the express intent of the Poison Pill.  The
Poison Pill itself was not put into place until after Zapata acquired its 40.4
percent stock interest in Envirodyne, making it clear that it is specifically
aimed at Zapata.

              32.    The Poison Pill is also structured to ensure that
Envirodyne directors associated with Zapata cannot vote regarding redemption of
the Poison Pill.  It places the decision





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regarding redemption in the hands of a group of "continuing directors," and it
excludes from the definition of "continuing director" anyone who is the
beneficial owner of 35 percent or more of Envirodyne's common stock.  Obviously
(and intentionally), Zapata Board nominees cannot be considered "continuing
directors" under the Poison Pill and cannot vote to redeem it.  The continuing
directors provisions discriminate against Zapata's existing ownership position.

              33.    The continuing directors provisions of the Poison Pill
also have the effect of disenfranchising Envirodyne's stockholders because they
place certain members of the existing Board in a position to prevent new
directors not approved by such members from participating in any decision to
redeem or amend the Poison Pill.  If, for example, Envirodyne's stockholders
voted to elect directors that do not include any continuing directors, a
situation would be created in which the Poison Pill could not, in accordance
with its terms, be redeemed or amended, regardless of whether such action would
be in the best interests of Envirodyne and its stockholders.

              34.    This Court therefore should declare the continuing
directors provisions of the  Poison Pill to be invalid, so that any action now
required of continuing directors may be taken with the simple approval of the
Board.

                             Fourth Cause of Action
              (Compliance with Section 13(d) of the Exchange Act)

              35.    Zapata realleges the allegations in the preceding
paragraphs of this complaint.

              36.    Section 13(d) of the Exchange Act, 15 U.S.C. Section
78m(d), and the rules and regulations promulgated under it, require that any
person acquiring more than 5 percent of any class of shares that are registered
under Section 12 of the Exchange Act shall file a Schedule 13D with the





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SEC.  The schedule is to disclose specified information with respect to the
identity of the owners and the amount of the shares they own.  Amendments to
the schedule are to be made as appropriate.

              37.    Zapata has filed a Schedule 13D and several amendments to
that Schedule (attached hereto as Exh. 5).  These filings contain all material
information required by applicable law to be disclosed.

              38.    There exists a strong likelihood and reasonable
apprehension that, although Zapata's proposals are in the best interests of
Envirodyne's stockholders, defendants will try to thwart Zapata's efforts by,
inter alia, instituting suit under Section 13(d) and its implementing rules and
regulations.

              39.    To ensure that the stockholders of Envirodyne may consider
Zapata's proposals, and freely make their own decisions pertaining to their
economic self-interest, Zapata requests that the Court declare that it has
complied in all material respects with Section 13(d) and its implementing rules
and regulations.

                             Fifth Cause of Action
              (Compliance with Section 14(a) of the Exchange Act)

              40.    Zapata realleges the allegations in the preceding
paragraphs of this complaint.

              41.    Section 14(a) of the Exchange Act, 15 U.S.C. Section
78n(a), and the rules and regulations promulgated under it, govern the
solicitation of proxies with respect to the voting stock of a public company
like Envirodyne.  In general, the statute and rules specify the information
required to be provided to stockholders in conjunction with a solicitation, the
manner in which the information is provided, and the solicitation materials
required to be filed with the SEC, as well as prohibit material
misrepresentations or omissions in connection with the solicitation.





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              42.    Zapata has filed preliminary proxy materials under Section
14(a) with the SEC.  These materials contain all material information required
by applicable law to be disclosed.

              43.    There is a strong likelihood and reasonable apprehension
that, although Zapata's proposals are in the best interests of Envirodyne's
stockholders, defendants will try to thwart Zapata's efforts by, inter alia,
instituting suit under Section 14(a) and its implementing rules and
regulations.
              44.    In order that the stockholders of Envirodyne may consider
Zapata's proposals, and freely make their own decisions pertaining to their
economic self-interest, Zapata requests that the Court declare that it has
complied in all material respects with Section 14(a) and its implementing rules
and regulations.

                                     Prayer

                     Therefore, Zapata prays that this Court enter an order
granting it the injunctive and declaratory relief described above, and that it
be awarded appropriate damages, including its attorney fees and costs of suit,
along with such other relief as the Court deems just and proper.

Dated:  April 21, 1997             Respectfully submitted,

Of Counsel:
                                   /S/ R. PAUL YETTER                           
                                   ---------------------------------------------
Samuel Cooper                      R. Paul Yetter
Baker & Botts, L.L.P.              State Bar No. 22154200
910 Louisiana Street               David D. Sterling
Houston, Texas 77002               State Bar No. 19170000
                                   910 Louisiana Street
                                   Houston, Texas 77002
                                   (713) 229-1234
                                   (713) 229-1522 (Fax)

                                   Attorneys for Plaintiff Zapata Corporation





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