Product Recall: Kraft and Polly-O String Cheese and String Cheese Twists. Click here
COOK macaroni as directed on package. Meanwhile, cook and stir onions in Dutch oven or large deep skillet sprayed with cooking spray on medium heat 2 min. Stir in next 6 ingredients; cover. Simmer on medium-low heat 7 min., stirring occasionally.
DRAIN macaroni. Add to ingredients in Dutch oven along with the Singles pieces; cook and stir 3 min. or until Singles are melted.
SERVE topped with mozzarella and Parmesan.