Ham & Leek Gratin

What is it?

Ham and leeks sit in a rich cheese sauce, then get baked under a golden topping. It’s a frozen gratin from Sainsbury’s, designed to go from freezer to oven with the same basic format as other bake-and-serve meals in the range. The filling is savoury and saucy, with diced ham bringing saltiness and the leeks adding a softer, sweeter note. Served in a tray, it’s the sort of meal that comes out with browned edges and a soft centre, ready to eat on its own or with potatoes and greens.