COOK rice as directed on package.
MEANWHILE, heat dressing in large skillet on medium-high heat. Add meat; cook and stir 2 min. Stir in peppers and peas; cook 3 min., stirring frequently. Add onions; cook and stir 1 min.
MIX soy sauce, cornstarch and ginger until well blended. Add to meat mixture; cook 1 min. or until thickened, stirring frequently. Serve over rice.