Baked Penne

1/2 lb. extra-lean ground beef or Italian Sausage 1/2 cup chopped onions  1/2 cup green peppers (I left this out b/c I don't like green peppers) 1 jar(24 oz.) spaghetti sauce 1 tub(10 oz.) PHILADELPHIA Italian Cheese and Herb Cooking Creme, divided 1 cup KRAFT Shredded Mozzarella Cheese, divided 3 cupscooked penne pasta Heat oven to 350°F.  Brown meat with vegetables in large nonstick skillet. Stir in spaghetti sauce, 3/4 cup cooking creme and 1/2 cup mozzarella; cook and stir 2 to 3 min. or until mozzarella is melted. Add pasta; mix lightly. Spoon into 2-qt. casserole; top with remaining cooking creme and mozzarella. Cover. Bake 20 min. or until heated through, uncovering after 15 min. www.plainchicken.com