1 lb. ground beef
1 med. onion, chopped
1 med. green pepper, chopped
1/2 lb. sliced pepperoni
1 lg. can sliced mushrooms
1 lg. jar spaghetti sauce
1 c. springs, cooked and drained
1 c. elbows, cooked and drained
1 c. med. shells, cooked and drained
2 c. grated Mozzarella

In large skillet, brown ground beef. Add onion, pepper, pepperoni and mushrooms. Simmer 15 minutes. Drain. Add pastas and sauce and heat mixture thoroughly. Place in casserole dish and sprinkle cheese on top. Bake at 350 degrees for 15 minutes or until cheese melts.