Exhibit 23.3 [Letterhead of Mayer, Brown & Platt] November 29, 1999 Peninsula Gaming Company, LLC Peninsula Gaming Corp. 3rd Street Ice Harbor P.O. Box 1750 Dubuque, Iowa 52004-1683 Re: PENINSULA GAMING COMPANY, LLC PENINSULA GAMING CORP. 12 1/4% Senior Secured Notes Due 2006 ------------------------------------- Ladies and Gentlemen: Reference is hereby made to our legal opinion, dated July 15, 1999, delivered to the Company and Jefferies & Co., Inc., as initial purchaser, in connection with the Company's issuance of $71,000,000 aggregate principle amount of its 12 1/4% Senior Secured Notes due 2006 (the "Notes"). We hereby consent to the filing of such opinion as an exhibit to the Company's Registration Statement (No. 333-88829) on Form S-4, as amended, in connection with the Company's exchange offer relating to the Notes and to the use of our name under the heading "SPECIFIC FEDERAL INCOME TAX CONSIDERATIONS - -- U.S. Federal Tax Characterization of the Notes and PGCL" in the prospectus contained therein. Very truly yours, /s/ Mayer, Brown & Platt