This Cheesy Potato Cake is a savory and comforting dish that combines the creamy goodness of mashed potatoes with the rich flavor of cheddar cheese. The cake is crispy on the outside and soft and fluffy on the inside, making it a perfect side dish or a satisfying vegetarian main course. Serve this delightful potato cake with a dollop of sour cream and a sprinkle of fresh chives for a truly irresistible meal.