pkg. (14 oz.) KRAFT Deluxe Macaroni & Cheese Dinner
lb. ground beef
pkg. (1-¼ oz.) TACO BELL® HOME ORIGINALS® Taco Seasoning Mix
cup BREAKSTONE'S or KNUDSEN Sour Cream
cups KRAFT Shredded Cheddar Cheese, divided
cup TACO BELL® HOME ORIGINALS® Thick 'N Chunky Salsa
HEAT oven to 400°F. PREPARE Dinner as directed on package. While Macaroni is cooking, cook meat with taco seasoning as directed on package. STIR sour cream into prepared Dinner; spoon half the Dinner mixture into 8-inch square baking dish sprayed with cooking spray. Top with layers of meat mixture, 1 cup shredded cheese and remaining Dinner mixture; cover. BAKE 15 min.; top with salsa and remaining shredded cheese. Bake, uncovered, 5 min. or until cheese is melted. Healthy Living Save 30 calories and 4g of fat, including 2g of sat fat, per serving by preparing with lean ground beef, BREAKSTONE'S Reduced Fat or KNUDSEN Light Sour Cream and KRAFT 2% Milk Shredded Cheddar Cheese. Special Extra For extra crunch and flavor, bake casserole as directed, topping with 1/2 cup coarsely crushed tortilla chips along with the salsa and cheese.