Make Cranberry Pistachio Sauce; keep warm.
Set oven control to broil. Spray boiler pan rack with cooking spray. Place fish, skin side down, on rack in broiler pan. Mix lime juice, butter and salt; Pour over fish.
Broil 4 inches from heat 8 to 10 minutes or until fish flakes easily with fork. Top fish with sauce. Sprinkle with nuts.
8 Servings.