Fresh wild-caught mahi mahi (also known as dorado or dolphinfish) fillets, sold by the pound at the Costco seafood counter. Mahi mahi is a lean, firm-fleshed fish prized for its mild, slightly sweet flavor and large, moist, tender flakes.

The fillets are boneless and sourced from wild fisheries, with origins that may include Hawaii, the Western Pacific, Ecuador, or the Gulf of Mexico depending on the season. The firm, dense texture holds up exceptionally well to high-heat cooking methods. Mahi mahi is one of the most versatile fish available, well-suited for grilling, baking, pan-searing, and broiling. It cooks quickly — typically 3 to 4 minutes per side — and is best served when just cooked through to preserve its moisture.