Tuna steaks are thick, meaty cuts that are rich in lean protein, but also low in fat and calories. The steak cut of tuna is a thick, meaty cut that holds up well to high heat cooking methods such as grilling and searing. This makes it a great choice for dishes that require a crispy exterior and a tender interior, such as tuna steak salads or sandwiches. Tuna steak has a mild, meaty flavor and a firm texture, making it an excellent substitute for other types of meat. In addition, it is also an excellent source of omega-3 fatty acids, vitamin B-12, niacin, and selenium.