COOK pasta in large saucepan as directed on package, omitting salt and adding broccoli to the boiling water for the last 2 min.
MEANWHILE, heat dressing in large nonstick skillet on medium-high heat. Add chicken; cook 5 min. or until done, stirring occasionally. Stir in remaining ingredients. Bring to boil, stirring constantly; cook 1 to 2 min. or until sauce is blended and heated through.
DRAIN pasta mixture; place in large bowl. Add chicken mixture; mix lightly.