Among the accompaniments that you need at your Thanksgiving table are mashed potatoes, the ultimate comfort food. However, if you are looking to diversify this classic side dish, this Mashed Potato Casserole recipe is for you.#thanksgiving #thanksgivingsides #potatorecipeTo print the recipe check the full recipe on my blog: https://www.homecookingadventure.com/recipes/mashed-potato-casseroleMakes about 10-12 servingsFor Mashed Potatoes3 pounds (1,4 kg) potatoes, peeled and cut into 1-inch pieces1 fennel bulb, cut in half, cored and thinly sliced on a mandoline2 tbsp (30g) unsalted butter, for cooking fennel1/2 cup (100g) gruyere cheese, grated1/4 cup (56g) unsalted butter1/2 cup (120g) sour cream, room temperature1/2 cup (120ml) half-and-half, room temperaturesalt to tastepepper to tasteTopping4 or 5 strips of bacon, cooked and crumbled1/2 cup (50g) gruyere cheese, gratedPretzel Topping1 1/2 cups (100g) pretzels, crushed1 tbsp (15g) Dijon mustard2 tbsp (30g) unsalted butter, meltedBackground music: Walking Hearts - https://www.epidemicsound.com/track/87Y0NhBVFQFollow me:FACEBOOK: https://www.facebook.com/homecookingadventureINSTAGRAM: http://instagram.com/homecookingadventurePINTEREST: http://www.pinterest.com/homecookingadv/WEBSITE:http://www.homecookingadventure.com/GOOGLE+: https://plus.google.com/+Homecookingadventurerecipes