HEAT oven to 350º F.
COOK pasta as directed on package, omitting salt; drain.
HEAT cooking creme and milk in medium saucepan on medium heat 2 to 3 min. or until warm. Add 1 cup shredded cheese; stir until melted. Stir in macaroni and chiles.
SPOON into 1-1/2-qt. baking dish sprayed with cooking spray; top with remaining shredded cheese. Bake 15 min. or until heated through.