This kielbasa and rice casserole is a comforting and satisfying dish that is perfect for a family dinner. Sliced kielbasa sausage is layered with rice, onions, and bell peppers, then topped with a creamy sauce made with sour cream, Dijon mustard, and smoked paprika. 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.
