1 1/2 lb. hamburger (browned & drained)
2/3 of 16 oz. box spiral macaroni (cooked & drained)
2 (12 oz.) pkg. shredded mozzarella cheese
1 sm. can mushrooms (chopped & drained)
1 c. chopped onion
2 (16 oz.) cans pizza sauce
1 (3 oz.) pkg. pepperoni

Combine in a big pot everything but cheese and pepperoni. Layer this and cheese and pepperoni in a crock pot. Finish with cheese and pepperoni on top. Cook on low temperature for 5 hours. Serves 8.