This kielbasa and sauerkraut casserole is a classic comfort food that is perfect for a chilly evening. Sliced kielbasa sausage is layered with sauerkraut, potatoes, and onions, then topped with a creamy sauce made with sour cream, Dijon mustard, and caraway seeds. The casserole is baked until everything is hot and bubbly, and the top is golden brown and crispy. Serve it with a side of roasted vegetables or a green salad for a complete meal.
