Kumpir is a Turkish fast food that is as well-known in Turkey as our own portion of fries here in the Netherlands. The basic ingredient is a generous roasted potato, baked in the oven, the meal of which is mashed with butter and Turkish Kasseri cheese. The potato is then filled with all kinds of delicious ingredients. These include: corn, peas, pieces of pickle, olive or sausage, etc. Then add a sauce on top, for example ketchup and/or mayonnaise, and enjoy!