#1 Heat oven to 400°F #2 Prepare Dinner as directed on package. While Macaroni is cooking, cook meat with taco seasoning as directed on package #3 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 #4 Bake 15 min. top with salsa and remaining shredded cheese. Bake, uncovered, 5 min. or until cheese is melted.