Step 5
Add remaining shredded cheese mixture to white sauce along with the
Velveeta, blue cheese, 2 Tbsp. Parmesan and mustard; mix well. Return to heat; cook 3 to 5 min. or until cheeses are melted, stirring constantly. Remove from heat. Add macaroni; mix well. Spoon into 13x9-inch baking dish sprayed with cooking spray.