In 5-quart saucepan over medium heat, heat oil; add chicken. Cook 5 minutes or until no longer pink. Add broth; heat to boiling. Add uncooked noodles, vegetables and pepper, stirring to coat noodles with liquid. Heat to boiling; reduce heat. Cover; simmer 10 minutes, STIRRING EVERY 2 MINUTES.Meanwhile, in medium bowl, stir together soup, milk and 1/2 cup cheese until smooth; stir into chicken mixture. Heat through; sprinkle with remaining cheese.