HEAT oven to 450ºF.
PLACE fish in 13x9-inch baking dish sprayed with cooking spray; sprinkle with chili powder. Top with tomatoes, onions, garlic and peppers; drizzle with dressing.
BAKE 15 min. or until fish flakes easily with fork, topping with cheese for the last 5 min.
SPRINKLE with cilantro. Serve with rice and limes.