1 c. each 3 different pastas (spring macaroni, shells, and elbows)
1 lb. ground beef
1 med. onion
1 green pepper
1/2 lb. sliced pepperoni
1 lg. can mushrooms, sliced or pieces
1 lg. can spaghetti sauce
2 c. grated Mozzarella cheese or Parmesan

Brown beef and drain. Add onions, pepper, pepperoni, mushrooms, and spaghetti sauce. Simmer 15 minutes. Cook pasta, then add pasta to sauce and heat thoroughly. Put in casserole dish. Sprinkle with cheese on top and bake at 350 degrees for 15 minutes or until cheese is melted.