There was a place my gaming group used to go to in Buffalo, NY, called Momo's.

They were a kind of all-you-can-eat place but centered around a "Mongolian BBQ", one of those places with the giant gas-fired griddle where you pick your ingredients out of a buffet and the chefs stir-fry them in front of you on that big griddle.

They had a huge selection of stuff to throw into it, and a good sauce variety. I've never found another place that equaled it since they shut down.