1 lb. ground chuck
1 onion, chopped
3 c. cooked rigatoni
1 pkg. pepperoni
1 large jar spaghetti sauce (extra chunky)
2 large pkg. shredded Mozzarella cheese

Sauté ground chuck and onion. In a crock-pot, make three layers of ingredients with meat on bottom to cheese on top. Slow cook for 5 hours.