HEAT oven to 400°F.
MIX dressing and juice. Place fish in 13x9-inch baking dish; drizzle with 1/2 the dressing mixture. Toss tomatoes and olives with remaining dressing mixture.
BAKE fish 20 min.; top with tomato mixture and cheese. Bake 5 min. or until cheese is melted and fish flakes easily with fork.
SPRINKLE with cilantro.