Mackerel Fillets

What is it?

Whole fillets of oily fish, frozen and ready to cook, with the skin usually left on and the flesh kept in neat, rich segments. They're sold as a plain fish component rather than a seasoned meal, so they can go straight into the oven, under the grill, or into a pan after thawing. Compared with more heavily prepared frozen fish options in the range, this sits at the simpler end: just the fish, no sauce, coating, or filling. Mackerel is naturally high in omega-3 fatty acids, and its oily flesh means it stays moist during cooking even at higher temperatures. The flavour is stronger and fishier than cod or haddock, which makes it a good match for sharp accompaniments like horseradish, mustard, or a squeeze of lemon.