Keep kids out of trouble by putting them to work in the kitchen with a pizza contest. Paired with a fruit salad and beverage, it can be the kids meal and sliced into squares it doubles as an adult hors d' oeuvre.
This child approved recipe is a bit fancier than plain old cheese pizza, but very simple. Make some tomato sauce ahead of time by frying two crushed cloves of garlic in two tablespoons of olive oil before adding a 16-ounce can of San Marzano tomatoes. Simmer on low for 20 minutes and then add sea salt and fresh ground pepper to taste and a handful of chiffonade basil.
Aside from that, all you'll need is sliced fresh mozzarella and store bought pizza dough (my kids like the kind from Trader Joe's which comes in three varieties — plain, herb and whole wheat.) Give each child their own dough to stretch and design with the sauce and cheese before popping the finished pizzas in the oven to bake. Once the guests have sampled the pies, tally the votes and declare a winner.