1Mix plum sauce, water, vinegar, cornstarch and mustard.
2Spray wok or 12-inch skillet with cooking spray; heat over high heat. Add chicken; stir-fry about 2 minutes or until no longer pink in center. Add carrot and onions; stir-fry 1 minute.
3Stir in plum sauce mixture. Heat to boiling, stirring constantly. Boil and stir 1 minute. Remove chicken mixture from wok. Refrigerate about 30 minutes until cool. Serve over salad mix.