Sprinkle 1/4 teaspoon salt over fish. Heat a large nonstick skillet over medium-high heat. Coat pan with cooking spray. Add fish to pan; cook 4 minutes on each side or until fish flakes easily when tested with a fork or until desired degree of doneness.
Place the coconut on a baking sheet; broil for 2 minutes or until toasted, stirring occasionally.
Combine remaining 1/4 teaspoon salt, cilantro, and next 5 ingredients (through jalapeño) in a food processor; process until finely chopped. Spoon 2 tablespoons cilantro mixture over each fillet; sprinkle each serving with 1 1/2 teaspoons coconut. Garnish with lemon wedges, if desired.