I've been doing less and less food every year since I've found people were eating less. We ordered a bunch of pizzas one year and none of the kids ate, too busy 'bouncing' same when we have snacks. Last year I had crackers, chips, dip, rice krispy treats and had a TON left over. We ordered pizza a little later after the main group had left, our closer friends stick around and we go from there. But this year we'll have a few more people (adult wise). Maybe have a few cases of beer chilled for after! LOL
Little sandwiches for the kids? I don't know, I just know I can never get my daughter out of the bounce house for longer than it takes to eat a chip.