Combine first 3 ingredients. Pour oil around preheated wok or skillet. Heat at med/high for 1 min. Add chicken and garlic, stirfry 2-3min. Add pineapple and veggies. Cover and cook 3-4 minutes or until veggies are crisp-tender. Add soy sauce mixture and stirfry until sauce bubbles and thickens. Serve over hot cooked rice.