Casserole recipes are delightful for many reasons—they're versatile and hearty, they provide leftovers for days, and are, for the most part, easy to make. There's something particularly satisfying about piling layers of noodles between cheese sauce or baking green beans into a creamy broth topped with crisped onions. They're the ultimate comfort food in the fall and winter once the weather cools down. And of course, everyone knows one of the best ways to eat a sweet potato is in a casserole topped with marshmallows and pecans. Similar to our favorite comfort foods like best stuffed pasta recipes and best baked pasta, our best casserole recipes will have you wishing the weather would always stay chilly.