Heat 1 tablespoon of the oil in 12-inch skillet or wok over high heat. Add chicken; stir-fry about 3 minutes or until no longer pink in center. Remove from skillet.
Heat remaining 1 tablespoon oil in skillet. Add vegetables and garlic; stir-fry about 2 minutes or until vegetables are crisp-tender. Add chicken and stir-fry sauce. Cook and stir about 2 minutes or until hot.