Since fish cheeks are the best part of the fish, and halibut's flavor is so light, you hardly have to do anything to make it taste good. In this recipe, a quick poach in a soy sauce-based mixture is all it takes to whip up a quick dish.
Check out more Healthy and Hearty Halibut Recipes.
Instead of mixing your own sauce, you can also buy soba shoyu soy sauce and dilute it with water to taste.
Bring a pot of water to a boil. Mix the soy sauce, mirin, lemon juice, and water together. Adjust to taste. Then place in a saucepot and bring to a boil.
Quickly blanch the halibut cheeks in the hot water (30 seconds). Then place in the boiling soy sauce mixture, cover with a clean paper towel (to soak in and spread the sauce), and simmer for 4-5 minutes, until translucent in the middle.
Remove the cheeks and top with the slices of scallion.