Pair with Vegetables: Serve alongside a crisp green salad, steamed green beans, or roasted broccoli.
Add a French Touch: Enjoy it with a baguette and a glass of red wine for a complete meal.
Tips for Success
Use a Mandoline: Thinly slicing the potatoes ensures even cooking and a perfect texture.
Choose the Right Sausage: Smoked or spicy sausages add depth of flavor, but mild sausages work well for a family-friendly dish.
Customize the Cheese: Gruyère adds a nutty flavor, while Cheddar brings sharpness—experiment with your favorites!
Make-Ahead Instructions
Assemble the casserole up to 24 hours in advance, cover it tightly, and refrigerate. When ready to bake, add an extra 10 minutes to the covered baking time.
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days and reheated in the oven or microwave.