Tilapia with Potatoes Au Gratin is a delicious and comforting dish that combines tender tilapia fillets with creamy and cheesy potatoes. The tilapia is seasoned with herbs and spices, then baked to perfection. The potatoes are thinly sliced and layered with a rich and creamy sauce, then topped with melted cheese. This dish is perfect for a family dinner or a special occasion, and it pairs well with a side of steamed vegetables or a fresh salad.