Scientific name: Lampris guttatus
Market name: Opah
Common names: Moonfish, Hawaiian moonfish
French: Opah
German: Gotteslachs
Italian: Pesce re
Japanese: Mandai
Spanish: Luna real
One opah has four types of flesh, each a different color. The tender meat of the loin, which runs along the backbone from eye to tail, is a light salmon-orange. The less-tender, stringy side flesh is the same color as the loin at the top but becomes paler at the bottom. The cheek meat is dark red. All cook up white except for the bright-red breastplate meat, which turns brown.
Opah has a rich, creamy taste and firm, fatty texture. The flavor is a cross between tuna and swordfish — distinctive but not overpowering.
Fresh: Fillets, Loins, Whole
Frozen (rarely): Fillets