During the day, I typically order a Thin Crust Pizza and get a side dish of some sort (nachos, chips & salsa, a big salad, cheese deli meat & crackers, etc.)
Occasionally, I'll get burgers or make a bunch of hot dogs.
For the night games, I just make a really good dinner (pasta dish with meat/seafood, order chinese, etc.).
Regardless what I eat, it gets washed down with a 12 pack of light beer (its a party that lasts all day).