Perhaps the most famous restaurant on Thomas St, The Penguin serves it up hot and greasy to every demographic. It's easy to spot a few scenesters enjoying a PBR, while mom and dad finish their Winky Dinky dogs (yes, hot dogs with pimento cheese, so so good).
Everyone already knows about the Penguin and that doesn't (always) work to your advantage. Get there early to miss the lunch and dinner rushes, and order some fried pickles to start things off. If you're down with Rockabilly, you won't mind the loud Johnny Cash, but if not, at least stop by to enjoy the food this famous greasy spoon has to offer.
P.S. sweet potato fries +1