For this week's edition of Guess Where I'm Eating, we had a hamburger pizza at a classic St. Louis institution. Be the first to correctly guess where it's from and we'll give you $20 to Porter's Fried Chicken. Hint: It's a north-county favorite.
UPDATE: Commenter Ryan Gremminger got it right: we were at Pirrone's (1775 Washington Street, Florissant; 314-839-3633). Seriously, if you haven't been -- go.
Simply study the photo and leave your best guess in the comments. (We promise it was more appetizing than it looks -- the camera flash really ruins the ambiance, doesn't it?) If you're the first correct answer, we'll give you $20 to Porter's Fried Chicken (3628 South Big Bend Boulevard, Maplewood; 314-781-2097).
Rules: To be eligible, you must leave a valid e-mail address (or Twitter handle or Facebook profile URL) in the comment-entry field. One guess per e-mail address. Employees of the restaurant in question and the Riverfront Times are not eligible.