1 large jar Prego spaghetti sauce
1 (16 oz.) pkg. spaghetti noodles, cooked as directed on box
1 pkg. shredded Mozzarella cheese
1 to 2 lb. ground beef or ground turkey
1 onion, chopped
1 green pepper, chopped
1 can sliced mushrooms, drained

Brown ground beef (or turkey), onion, green pepper and mushrooms. Drain grease. Add Prego and simmer over medium heat. While simmering, boil spaghetti as directed on box and drain. Mix noodles and spaghetti sauce together and pour into a large baking dish. Top with Mozzarella cheese and bake at 350°F until cheese is melted. Let stand for 2 to 5 minutes prior to serving.