1 pkg. (14 oz.) KRAFT Deluxe Four Cheese Macaroni & Cheese Dinner
2-1/2 cups boiling water
1/2 cup BREAKSTONE'S or KNUDSEN Sour Cream
1/2 cup KRAFT Shredded Cheddar Cheese
Place Macaroni in 1-1/2-qt. casserole dish; stir in boiling water. Cover with lid.
Bake 25 min., stirring after 12 min.
Stir in Cheese Sauce and sour cream; sprinkle with shredded cheese. Continue to bake, uncovered, 5 min. or until shredded cheese is melted.
Serve with a cooked crisp green vegetable, such as broccoli.
For more flavor, add 1 chopped tomato or 1/4 cup OSCAR MAYER Real Bacon Bits along with the Cheese Sauce.