Preheat oven to 350°. Prepare pasta according to package directions. Stir together pasta, Spicy Tomato Sauce With Italian Sausage, and 1/2 cup mozzarella cheese. Spoon mixture into a lightly greased 11- x 7-inch baking dish. Sprinkle with remaining 1/2 cup cheese. Bake at 350° for 20 to 25 minutes or until cheese is melted. Let stand 10 minutes before serving.