Crock-Pot Pizza - cooking recipe

Ingredients

1 lb. hamburger, browned
1/2 box rigatoni, cooked
2 (16 oz.) cans pizza sauce
2 (16 oz.) pkg. shredded Mozzarella cheese
1 (4 oz.) pkg. pepperoni
1 chopped onion (optional)
1 chopped green pepper (optional)
1 can mushrooms (optional)

Preparation

Place 1/3 cooked rigatoni in crock-pot.
Add 1/3 meat, 1/3 pizza sauce, 1/3 optional ingredients and 1/3 cheese.
Layer remaining ingredients in same order.
Do not stir.