HEAT large nonstick skillet sprayed with cooking spray on medium-high heat. Add bell peppers and onions; cook and stir 6 to 8 min. or until vegetables are crisp-tender. Transfer to large bowl; keep warm.

ADD meat, garlic and black pepper to same skillet; cook and stir 3 min. Add soy sauce; cook 1 min. or until meat is cooked through. Add barbecue sauce; cook until heated through.

SPOON meat mixture into bowl with vegetables; toss gently. Serve over rice.