Crockpot Pizza

1 1/2 lbs. lean ground beef
1 med. onion, chopped
1 green pepper, chopped
8 oz. rigatoni, cooked according to directions
7 oz. sliced mushrooms, drained
3 oz. pepperoni slices
16 oz. pizza sauce
10 oz. mozzarella cheese, shredded
10 oz. cheddar cheese, shredded

Brown ground beef and onions in a saucepan; drain. Layer half of each of the ingredients in the order given in a 3-4 quart crock-pot; repeat layers. Cover and cook on low 3-4 hours. Keep rigatoni covered with sauce so they don�t dry out. For a large group, double the recipe and use 1 lb. ground beef and 1 lb. medium Italian sausage. Double recipe will fill a 6-quart crock-pot.