COMBINE pasta, sauce, ricotta cheese, 1/2 cup of the mozzarella cheese and 2 Tbsp. of Parmesan cheese in large skillet or large saucepan.
COOK on medium heat 10 min. or until heated through, stirring occasionally. Remove from heat.
SPRINKLE with the remaining 1/2 cup mozzarella cheese and remaining 2 Tbsp. Parmesan cheese; cover. Let stand 5 min. or until mozzarella cheese is melted.
serving size = 1-1/4 cups (300 mL)