Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  1       lb.           ground beef
    1/2                 onion (diced)
  2       medium        zucchini (cut in bite size pieces)
  4       oz. can       sliced mushrooms
 15       oz. can       seasoned tomato sauce
  8       oz.           shredded mozzarella cheese

Preparation:

Saute together in large skillet ground beef, diced onion and zucchini. When zucchini is tender and ground beef is brown drain well. Return to medium heat and add mushrooms, and seasoned tomato sauce. When heated through sprinkle shredded mozzarella cheese on top and cover. When cheese is melted serve. I make this with fat free cheese and lean gound beef.