Seared Opah (Moonfish) With Vine-Ripe Tomato Garlic Butter

Total Time
Prep 10 mins
Cook 30 mins

It's my understanding that Opah isn't easy to come by, so I was thrilled when I found some. Then I discovered that there are not many recipes out on the internet, so recipes are also hard to come by. I found this one and we loved both the fish and the recipe. I also had to search for a recipe for the Tomato Concasse, so included it here for convenience. Just as a note, I didn't use nearly as much butter as the recipe calls for. From Chef Linda Yamada of the Beach House in Hawaii.

Ingredients Nutrition


  1. Make the Tomato Concasse: (The French word means to roughly chop).
  2. Remove the core of the tomato with the tip of a small knife.
  3. At the other end, lightly score (just break the skin) of the tomato by cutting an X.
  4. Plunge the tomatoes into a pot of rapidly boiling water for 10 seconds (blanch).
  5. Remove the tomatoes with a slotted spoon and place into a bowl of ice water or under cold running water to halt the cooking process (this process is called 'refreshing').
  6. The peel should now just slip off; if the tomatoes are not quite ripe, they may need to be blanched and refreshed again.
  7. Place the tomatoes on a cutting board with the core side down and cut in half.
  8. Remove the seeds with a teaspoon and discard.
  9. Roughly chop the tomatoes to the desired size.
  10. Gently cook the shallots and the tomatoes in butter without coloring them (this is called sweating) for 5 minutes and set aside until required.
  11. For the Fish:.
  12. Heat the saute pan on medium heat until hot.
  13. Add in oil; season both sides of fillets with salt and pepper.
  14. Sear on both sides until medium done, approximately 4 - 5 minutes total depending on thickness of fish.
  15. Remove from pan; add garlic; stir consistently.
  16. Add tomato concasse, lemon juice and white wine on medium heat; let reduce until most liquid is gone.
  17. On low heat, add in butter a little at a time.
  18. Remove from heat; add in chopped parsley and season.
Most Helpful

This recipe was fabulous. I did not add tomatoes because my wife does not like cooked ones. Side dish hot pot vegetables. ?

Jesse C. April 26, 2016

This is a wonderful recipe! I only used 1/2 cube butter. Great flavors and the opah stayed nice and moist. :)

Laura K. February 11, 2016

This recipe was amazing, the directions not very clear especially towards the end so I had to figure it out my own way. As with other readers I only used 4 TBSP butter maybe next time 6 as the juice at the end is nice to pour over fish with the tomatos. I also finished cooking the fish in the tomatos at the end then added parsley & parmesan after turning off the heat. This recipe is a definite keeper!

catswamp101 November 01, 2015