HEAT oven to 375°F.

TOSS carrots with 2 Tbsp. dressing in 13x9-inch baking dish; spread evenly onto bottom of dish. Bake 15 min. Stir carrots; top with fish.

COMBINE tomatoes and remaining dressing; spoon over fish. Bake 15 min. or until fish flakes easily with fork. Meanwhile, prepare rice as directed on package.

SERVE fish and carrots over rice; top with tomato mixture.