Halve and seed some jalapenos. Stuff with cream cheese. Wrap with bacon. Either bake off ahead of time in oven (400 for about 20-25 minutes) or store to grill at the tailgate. Be sure to wear gloves if you do this because seeding and handling that many jalapenos will make your hands BURN if you do not. (Learned this the hard way.)
Also, sausage balls. Three cups of Bisquick, one lb of cooked sausage, 2 cups of cheddar cheese. Mix and roll into one inch balls, bake for 15-20 minutes or so.