For me the best tuna steak cooks up like beefsteak & needs a steak knife to cut it.
Or am I thinking of swordfish? Haven’t had either in a while.
I have eaten a swordfish steak, but have not cooked one. I think swordfish and mahi mahi are from the same family of fish as tuna . . . the jack family, I think. They are all similar in taste, grain and texture, although I prefer tuna steak. Yes, very much like a beef steak, even down to cooking them medium to medium rare. . . better to not overcook. Some would say medium is overcooking.
Better stop . . . getting hungry and I won’t be able to knock down a tuna steak tonight. But tuna steaks are one of my very favorites.