In a small bowl, combine breadcrumbs, parsley, lemon rind and garlic.
Place the fillets on a lightly greased wire rack in a baking pan.
Sprinkle the fish evenly with salt, then spoon the breadcrumb mixture evenly over the top of the fillets, pressing down gently.
Drizzle evenly with melted butter.
Bake at 400 F for 17 minutes or until breadcrumbs are golden and the fish is fully cooked through and flakes when tested with a fork.