There are so many different variety of mushrooms which come in various sizes, colors, and textures. The following recipe suggests using wild mushrooms but if you have a variety that you like better that would be fine to use too. Wild Mushroom Polenta Casserole is a recipe that can be used as a side dish or add a protein for a complete meal. The recipe suggests using a nutty flavored cheese such as Fontina or Taleggio, but again this can be tailored to your liking. This recipe can also be prepped a day ahead and baked when needed.