Cut tops off peppers and discard; remove seeds. Blanch peppers in boiling water for 5 minutes. Drain and rinse in cold water; set aside. , In a bowl, combine beef, 1/4 cup tomato sauce, rice, 2 tablespoons cheese, onion, Worcestershire sauce, salt, pepper and egg; mix well. Stuff the peppers; place in an ungreased 1-1/2-qt. baking dish. Pour the remaining tomato sauce over peppers. Cover and bake at 350° for 45-60 minutes or until meat is no longer pink and peppers are tender. , Sprinkle with remaining cheese; return to the oven for 5 minutes or until cheese is melted.