1 (8 oz.) pkg. Ziti or elbow macaroni, cooked
1 (15 1/2 oz.) jar spaghetti sauce
1/2 c. (2 oz.) shredded Mozzarella cheese

Cook macaroni in 2 quart casserole. Combine macaroni and spaghetti sauce. Cover with lid. Microwave at medium high 8 to 9 minutes. Stir once. Sprinkle with cheese. Let stand covered, 10 minutes before serving.