Add 1 lb. cooked and drained ground beef or Italian sausage and/or 1/2 cup chopped each onions, green peppers and mushrooms to the spaghetti sauce before heating as directed.
Cook spaghetti as directed. Meanwhile, cut 1 pkg. (8 oz.) PHILADELPHIA Cream Cheese into cubes; place in medium saucepan. Cook on low heat until completely melted, stirring frequently. Add spaghetti sauce; cook until heated through, stirring frequently. Drain spaghetti; top with the sauce. Sprinkle with Parmesan cheese.
Prepare as directed, using 3/4 cup KRAFT Shredded Parmesan Cheese.