Here at Cook For Your Life, we love miso and mackerel. Oily fish like mackerel should make their way on your plate on a regular basis as they are a great source of vitamin... A, D and of course those wonderful, anti-inflammatory omega-3 fatty acids. This marinade is a classic combination of sesame, miso and peanut butter and is a great way to add an Asian flare to a weeknight meal. The longer you leave the fish in the marinade the more intense the flavor will be. Serve this alongside rice and a crisp green salad for a super easy and satisfying meal.