Rinse fillets thoroughly in cold water, pat dry with paper towels, and set aside.
Combine melted butter and lemon juice in a shallow dish.
Combine flour, chopped parsley and pepper in another shallow dish.
Dip fillets in butter mixture and dredge in flour mixture. Transfer fillets to a nonstick baking sheet, and drizzle any remaining butter mixture over fish. Sprinkle fillets with paprika.
Bake at 375 degrees for 15 to 20 minutes or until fish is golden brown and flakes easily when tested with a fork. If a crisper texture is desired, broil baked fillets 4 inches from heat for 1 minute. Garnish each fillet with a lemon wedge and fresh parsley sprigs, if desired.