COOK pasta in large saucepan as directed on package without salt, adding broccoli to the boiling water for the last 3 min.
MEANWHILE, spray large nonstick skillet with cooking spray; heat on medium-high heat. Add chicken; cook 6 to 8 min. or until done, stirring occasionally. Stir in dressing, soy sauce and seasonings; cook 1 min., stirring occasionally.
DRAIN pasta mixture; place in large bowl. Add chicken mixture; mix lightly. Serve topped with nuts.