Mahi mahi substitutes

Thick, dense steaks from a large warm-water fish, cut the same way mahi is.

Best for

grilling, kebabs and skewers, blackened fish, searing in cast iron, fish steaks with salsa

The most reliable choice for anything cooked over fire, since swordfish is even firmer than mahi and simply will not fall apart. It is meatier, denser and slightly richer, with a faint sweetness and more of its own character, so a delicate lemon-butter treatment will taste heavier than it would with mahi. Cook it the same way, four to five minutes a side for a one-inch steak, and stop at 130F to 140F, because like mahi it is lean and turns dry and chalky quickly. Cut it into cubes for skewers and it holds better than any fish here.

Warm-water reef fish with thick white fillets and a big moist flake.

Best for

fish tacos, blackened fish, grilling, pan-searing, Caribbean and Gulf recipes, fried fish sandwiches

The closest match on flavor and flake, and the fish that appears alongside mahi on the same Florida and Caribbean menus. Both are sweet, mild and large-flaked, so the dish tastes right rather than merely acceptable. They are a little more delicate than mahi, particularly snapper, so handle them once and use a fish spatula on a grill, or cook them in a pan. Snapper is usually sold skin-on and the skin is worth crisping, which is a bonus mahi cannot offer since its skin is tough and always removed.

Thick, firm, premium flatfish, sold as steaks or portioned fillets.

Best for

grilling, roasting, pan-searing, blackened fish, special-occasion plates

The best texture match at the top of the market: dense, firm and large-flaked, so it survives a grill and holds together in a taco. It is sweeter and cleaner tasting than mahi, and considerably more expensive. The one real risk is timing, because halibut is even leaner and less forgiving than mahi and goes from moist to cottony in about a minute, so use a thermometer, pull it at 130F and let it rest. A heavy blackening rub is arguably a waste of a good halibut steak, though it works.

Lean cod-family white fish, available everywhere fresh or frozen.

Best for

fish tacos, battered and fried fish, baked fish, blackened fish in a pan, fish sandwiches

The affordable and widely available answer, and genuinely good in anything where the fish ends up flaked or coated. Cod and haddock are sweeter and cleaner than mahi and their flake is just as large, but they are far softer and wetter, which means they will break apart on a grill grate and can slump in a hot pan. If the recipe grills, switch to a pan, a grill basket or foil, cut the pieces large, and dry the fillet very well first. In a taco, nobody will feel short-changed.

Yellowfin or albacore steaks, cooked rare to medium rather than through.

Best for

grilling, searing, poke-style and seared salads, kebabs, blackened steaks

Firm enough for any grill and often available where mahi is not, but the doneness rule is completely different and this catches people out. Mahi is cooked through to opaque; tuna is best seared hard and left rare in the middle, since fully cooked tuna is dry and grey with a strong flavor. It is also darker, denser and much more assertive, so a delicate mango salsa built for mahi will be overpowered. Use it when you are willing to serve the fish pink, and treat it like a steak, ninety seconds a side on ferocious heat.

Medium-firm white fish, generally sold skin-on as fillets.

Best for

pan-searing, roasting, fish tacos, grilling with care, blackened fillets

A good middle ground between mahi's firmness and cod's price. All three hold together better than cod and cost less than halibut, and amberjack in particular is dense and steaky and often sold in the same Gulf markets as mahi. They are sold skin-on, which is worth crisping in a pan, though on a grill the skin means you must oil the fish well and leave it alone for the first three minutes. Flavor is slightly more pronounced than mahi's clean sweetness, particularly with amberjack.