Our Twice Baked Potato Casserole has all the “twice-baked potato” vibes you’re looking for. In other words, it’s everything you want your twice-baked potato to be. All the ingredients are super easy to find. We recommend using russet potatoes here since they’re starchy, making them the perfect baking potatoes. You can assemble this up to one day ahead if needed, and then bake right before serving. It makes a great side for a steak, but can easily be a standalone meal. Try topping it with fresh or pickled jalapeños for some added spice, or chopped tomatoes for some contrast.