EXHIBIT 5.1

                                  MARK TRIESCH
                                 ATTORNEY AT LAW

                                 October 2, 2003

To the Board of Directors Nannaco, Inc.

     As counsel for Nannaco, Inc., a Texas corporation, (the "Company"), you
have requested our firm to render this opinion in connection with the
registration statement of the Company on Form S-8 ("Registration Statement")
under the Securities Act of 1933, as amended (the "Act"), to be filed with the
Securities and Exchange Commission relating to the registration of the issuance
of up to 10,000,000 shares of common stock, par value $.001 per share (the
"Common Stock"), to be issued in connection with the 2003 Stock Option and Grant
Plan (the "Plan") to employees and consultants who will be compensated through
the Plan. We are familiar with the Registration Statement and the registration
contemplated thereby. In giving this opinion, we have reviewed the Registration
Statement and such other documents and certificates of public officials and of
officers of the Company with respect to the accuracy of the factual matters
contained therein as we have felt necessary or appropriate in order to render
the opinions expressed herein. In making our examination, we have assumed the
genuineness of all signatures, the authenticity of all documents presented to us
as originals, the conformity to original documents of all documents presented to
us as copies thereof, and the authenticity of the original documents from which
any such copies were made, which assumptions we have not independently verified.

     Based upon the foregoing, we are of the opinion that: 1. The Company is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Texas; and 2. The shares of Common Stock to be issued are
validly authorized and, when issued and delivered in accordance with the terms
of the Plan will be validly issued, fully paid and nonassessable. 3. The shares
of Common Stock to be issued in accordance with the terms of the Plan upon the
exercise of options for valid consideration, will be validly issued, fully paid
and nonassessable 4. We consent to the filing of this opinion as an exhibit to
the Registration Statement and to the reference in the Registration Statement to
Mark Triesch under the heading "Exhibits-Opinion."

                                                Very truly yours,

                                                /s/ Mark Triesch