Cook rigatoni to desired doneness as directed on package. Drain; cover to keep warm.
Meanwhile, in medium nonstick skillet, cook sausage over medium heat for 10 minutes or until no longer pink. Drain.
Add bell peppers; cook and stir 3 to 5 minutes or until bell peppers are tender.
Stir in spaghetti sauce; cook 1 minute or until thoroughly heated. Serve sausage mixture over rigatoni. Sprinkle with cheese.