Form a tray from aluminum wrap on a cookie sheet and place bluefish filet with skin side down on tray. Pour on liberal amount of Italian Salad dressing. Bake in oven or grill until sauce thickens and skin turns dark brown. Garnish with chopped scallions or parsley.
Discard sauce, which should also contain most of the strong tasting fat. Occasional basting with the sauce improves the flavor.