M&S Taste Buds Fish Pie with Juicy Peas Flaky cod and juicy peas in a creamy sauce, topped with a potato, carrot and swede mash. Cook in the microwave or oven-bake. 1 of your 5 a day. No added sugar and low in salt. Serves 1 hungry toddler. Our M&S seafood products have been sourced from fisheries and fish farms in a way that minimises their ethical and environment impact, while guaranteeing you the highest quality, delicious seafood you’d expect from M&S.