HEAT large nonstick skillet on high heat. Add bok choy, peppers, half the garlic and 1 tsp. ginger; stir-fry 1 min. Stir in broth; cover. Simmer 3 to 5 min. or until vegetables are crisp-tender. Transfer to platter; cover to keep warm.
COMBINE meat, dressing, soy sauce, and remaining garlic and ginger.
HEAT same skillet on high heat. Add meat mixture; stir-fry 3 to 4 min. or until meat is done. Spoon meat and sauce over vegetables.