We alwasy go to Restaurantasaurus. They have the double cheeseburger and a huge hot dog on the list, not sure but there is another thing.
It is air conditioned and plenty of room to sit, not to mention a nice toppings bar.
The other place is Pizzafari. Can't speak for it as we haven't eaten there, but it is very popular, so it must be pretty good.
I do know there is pizza (duh) and an Italian sandwich that people talk about.