Costco sells frozen Chilean Sea Bass filets in Bags, next to their other frozen fish in bags. I have checked it out, and they claim it is sustainable, so I don't have to feel bad. (Guests have gotten concerned with me serving Chilean Sea Bass, because of recent bans
) If you don't like the fishiness of salmon, and like something that is melt in your mouth, try smoking this. I use a brine like salmon (1 part salt to 2-4 parts brown sugar), but only brine for about 4 hours. Rinse and dry on a rack for 4+ hours. The sky is the limit for variations on this. Smoke to internal temp of 125-130. It is a total fat bomb. Drips with fish fat if you don't oversmoke it. Mild, tender, and not fishy. My new favorite smoked fish.