Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/2  pounds        lean ground beef
   2      medium        onions -- chopped
     2/3  16 oz pkg     rigatoni, -- cooked
   2      cans          pizza sauce
   2      pounds        shredded mozzarella cheese
   1      package       pepperoni
                        mushrooms

Preparation:

In a skillet, brown and crumble meat along with onions. Layer ingredients in crock pot in the order given. Cook low for 5 hours. Makes a full pot.