Tempered potatoes Lankan style is a delicious and spicy Sri Lankan dish made with potatoes, onions, and a blend of aromatic spices. It is a popular vegetarian dish that can be enjoyed as a main course or as a side dish. The potatoes are cooked until tender and then tempered with mustard seeds, curry leaves, onions, and spices. This dish is full of flavors and can be served with rice or roti for a satisfying meal.