4 servings (serving size: 1 fillet and about 2 teaspoons cilantro butter)
Combine first 3 ingredients; sprinkle over both sides of fish. Heat a large nonstick skillet over medium-high heat. Coat pan with cooking spray. Coat both sides of fish with cooking spray; place in pan. Cook 3 minutes on each side or until fish flakes easily when tested with a fork or until desired degree of doneness. Place fish on a serving platter; squeeze lemon quarters over fish.
Place butter and remaining ingredients in a small bowl; stir until well blended. Serve with fish.