Cauliflower Cheese is a comforting British classic side dish that can also be enjoyed as a main. This recipe features roasted cauliflower florets tossed in a rich, silky Mornay cheese sauce made with a blend of Red Leicester and Gruyère cheeses, then baked until bubbly and golden. Roasting the cauliflower enhances its flavor and texture, making this dish extra satisfying and full of cheesy goodness.