COOK pasta in Dutch oven or large saucepan as directed on package.
MEANWHILE, heat dressing in large skillet on medium heat. Add chicken and vegetables; cook 10 to 12 min. or until chicken is done, stirring frequently. Add broth and cream cheese spread; cook 2 min. or until cream cheese is melted, stirring constantly. Stir in Parmesan.
DRAIN pasta; return to pan. Add chicken mixture; mix lightly. Cook 1 min. or until heated through.