PREHEAT broiler. Place fish on foil-covered baking sheet. Broil, 4 inches from heat, 4 min. Meanwhile, mix mayo and dill weed.
REMOVE fish from broiler; spread with mayo mixture. Sprinkle with cheese.
BROIL an additional 2 to 4 min. or until topping is golden brown and fish flakes easily with fork. Serve with the lemon wedges.