Preheat the oven to 375°F (190°C).
Take the potatoes and meticulously peel and thinly slice them, about 1/4 inch in thickness.
Generously grease a 9-inch pie plate with butter or non-stick cooking spray.
Arrange the potato slices carefully in the pie plate, overlapping slightly.
Melt the butter and delicately pour it over the potatoes.
Sprinkle with a generous amount of Parmesan cheese, salt, pepper, garlic powder, and onion powder.
Bake in preheated oven for 25 to 30 minutes until it is golden brown in color.
Let cool for 10 minutes before savoring the dish.
Serve it warm for a delectable experience.