Pizza Casserole

INGREDIENTS

16 ounces rotini or penne pasta noodles uncooked (use gluten-free pasta to make this gluten-free)

3½ cups pizza sauce

2 ½ cups water

1 cup grated mozzarella cheese

½ cup grated cheddar cheese

24 pepperonis

¼ cup onions

¼  diced bell peppers

½ cup sliced mushrooms