Add some pizzazz to the usual potato side dish with this Potato Mushroom Gratin! It's topped with creamy béchamel sauce, mozzarella, and parmesan for a savory, delicious addition to your meal.  You guuuuys! T-minus THREE days to Thanksgiving. Holy moly. Today, I am sharing a not-particularly-photogenic but DEFINITELY delicious potato dish! This is my Potato Mushroom