Crock Pot Pizza Casserole - cooking recipe

Ingredients

1 1/2 lbs lean ground beef, browned and drained
2 medium onions, chopped
11 ounces rigatoni pasta, cooked and drained
28 ounces prepared pizza sauce
2 lbs shredded mozzarella cheese
3 ounces pepperoni, sliced
mushroom, to taste

Preparation

Layer the ingredients in this order: Beef, Onions, rigatoni, pizza sauce, mozzarella, pepperoni, mushrooms.
Cook on low for 5 hours.