3 cups (1/2 of 16-oz. pkg.) rigatoni pasta, uncooked
1/2 lb. sliced fresh mushrooms
1/4 tsp. each dried basil leaves, dried oregano leaves and crushed red pepper
1 cup fat-free reduced-sodium chicken broth
4 oz. (1/2 of 8-oz. pkg.) PHILADELPHIA Neufchatel Cheese, cubed
1 pkg. (6 oz.) baby spinach leaves
1/4 cup KRAFT Grated Parmesan Cheese
1-1/2 cups KRAFT Shredded Mozzarella Cheese with a TOUCH OF PHILADELPHIA, divided