- 1 1/2 pounds ground beef
- 1 large onion, chopped
- 2/3 pound rigatoni noodles, slightly undercooked
- 28 ounces pizza sauce
- 2 pounds shredded mozzarella cheese
- 20 pepperoni slices, cut in half
- Brown meat and onions in skillet; drain.
- Layer ingredients in slow cooker in the order given.
- Cook on LOW for 4 to 6 hours.