I may or may not have eaten a Big Italy pizza from Pizza Hut in 1 sitting not to long ago. Wasn't very good.
The Gorilla Challenge might be right up your alley. Wheat State Pizza, locations in Derby, Pittsburg, Emporia, KCK, Lawrence, etc.
You can win over $250 if you defeat the Gorilla. It is like 5500 calories of 24" pizza.