M&S King Prawn Risotto Italian carnaroli rice with a white wine and tomato sauce, topped with king prawns and Santarella tomatoes. Simply microwave or pan fry to enjoy. Serves 1. 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.