This Pumpkin and Sweet Potato Gratin is a warm, comforting side dish that combines the sweetness of pumpkin and sweet potatoes with a creamy, cheesy topping. Perfect for a cozy dinner or as a festive addition to your holiday table, this gratin is not only delicious but also a beautiful display of autumn's bounty. It's a simple yet elegant dish that highlights the natural flavors of its main ingredients, making it a hit for any occasion.