4 oz. (1/2 pkg.) spaghetti
1 26 oz. spaghetti sauce
1 4 oz. can mushrooms
1 4 oz. can black olives
1/2 medium onion, chopped (optional)
1 8 oz. pkg. shredded Mozzarella cheese
1 4oz. pkg. pepperoni

Cook spaghetti as directed, drain and place in bottom of 8x8 baking pan. Place mushrooms, black olives, and onions onto spaghetti. Pour spaghetti sauce over top. Place cheese on top of sauce, then place pepperoni.

Bake at 350°F for 10 minutes or until cheese is melted.