M&S Collection Seafood GratinA responsibly sourced mix of cod, smoked haddock, salmon, prawns and scallops in a luxurious vintage Cheddar and Gruyere cheese sauce, topped with a sourdough crumb and fresh herb topping. Oven cook for 24 minutes. Serves 2.Welcome to Collection from M&S, where exceptional quality and intricate attention to detail makes for something truly special.M&S Food has been at the heart of the nation since 1884. Giving our customers their best-loved products at the incredible quality and value that only M&S can deliver. From Percy Pig to the freshest M&S Select Farms produce, we grow, source, and develop our own products to give you family-ready food that’s unbeatable on flavour and innovation. And that’s whether you come to us for your family favourites, an indulgent treat, or your perfect party food spread. After all, this is not just food… This is M&S Food. 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.Always responsibly sourced.100% of M&S Fish and Shellfish is responsibly sourced. Find out more about sourcing at www.marksandspencer.com/fish