1 pound sole, orange roughy or other delicate fish fillets, about 3/4" thick
2 tablespoons butter or stick margarine, melted
1 tablespoon lemon juice
1/4 teaspoon salt
1/4 teaspoon paprika

Heat oven to 375'. Spray rectangular pan, 13 x 9 x 2 inches, with cooking spray.
Cut fish into 4 serving pieces; place in pan. If fish has skin, place skin sides down. Tuck under any thin ends for more even cooking.
Mix remaining ingredients; drizzle over fish.
Bake uncovered 15 to 20 minutes or until fish flakes easily with fork.
Remove skin from fish before serving if desired.