1Heat oven to 350°F. Cook and drain pasta as directed on package. Do not rinse pasta.
2Meanwhile, cook broccoli as directed on box. Cool 1 minute. Place broccoli & cheese sauce, sour cream, 2 tablespoons of the Parmesan cheese, the milk and basil in food processor. Cover; process 1/2 to 1 minute or until almost pureed.
3Place foil baking cup in each of 6 regular-size muffin cups; spray with cooking spray. Place enough cooked rigatoni upright in each lined cup to keep them standing up. Spoon broccoli mixture over and around the pasta, filling pasta tubes as much as possible. Use spoon to push filling between pasta tubes. Sprinkle with remaining 2 tablespoons Parmesan cheese.
4Bake 20 to 25 minutes or until tops are beginning to brown.