1. Spray large skillet with cooking spray. Add chicken; cook and stir on medium-high heat 5 min. Add green pepper and onion; cook and stir an additional 3 to 5 min. or until chicken is cooked through and vegetables are tender.
2. Add water. Bring to boil; reduce heat to medium-low. Stir in pasta, making sure pasta is covered with water; cover. Simmer 15 min. or until pasta is tender.
3. Stir in sauce. Sprinkle with cheese; cover. Reduce heat to low; continue cooking 5 min. or until cheese is melted and mixture is heated through.

Yield: 4 servings