Patatosalata

Potato salad is a salad dish made from boiled potatoes, usually containing a dressing and a variety of other ingredients such as boiled eggs and raw vegetables. Potato salad is found in several countries in Europe. The German Kartoffelsalat, is one of the most famous that was spreading largely throughout Europe, North America, and later Asia. American potato salad most likely originated from recipes brought to the U.S. by way of German and other European immigrants during the nineteenth century.

Source: Wikipedia