Like any great gratin, this one includes creamy, rich cheese, namely white Cheddar. What’s beneath and between that lovely, creamy cheese is a combination of Roasted Vegetables, including cauliflower, butternut squash, and kale. But what really puts this Gratin over the top, is the inclusion of White Beans. These butter beans add more creaminess, plus a slightly denser texture. Finished with panko bread crumbs and seasonings that include onion, thyme, and parsley, this may be one of the most satisfyingly savory sides you’ll enjoy this season. And if you are serving it alongside a turkey, this dish need not compete for oven time. While we do recommend cooking our Roasted Vegetable and White Bean Gratin in the conventional oven at 350°F for about 25 minutes, you’ll save minutes and oven space by heating it in the microwave, with similar results. Four minutes or so on high yields a hot and hearty Gratin that’ll serve up to four people when served as a complement to a larger meal.