Cod loin can be cooked using various methods, including baking, frying, grilling, and poaching. Baked cod loin is a healthy, low-fat option that can be seasoned with herbs or spices for extra flavor. For a crispy finish, pan-fry cod loin in a small amount of oil until golden brown. Grilled cod loin is perfect for summer barbecues, and can be marinated in your favorite sauce or seasoning. Poached cod loin is a gentle cooking method that results in a tender and flaky fish.