The crossword solution for the term 'Cheesy Crust' is 'Gratin, ' which is a French dish consisting of a layer of vegetables, cheese, and/or meat topped with breadcrumbs or grated cheese and baked in the oven. Gratin is often served as a side dish or as a main course. It is usually served hot and can be made with a variety of ingredients, including potatoes, onions, mushrooms, and other vegetables.