Coarsely chop the pistachios. Wash mint, shake dry. Pluck the leaves from the stalks and chop finely. Peel and grate ginger.
Soak the rolls in cold water for about 10 minutes. In the meantime peel and finely dice the onion. Squeeze the bread roll well and knead with onion, chopped egg pistachios, ginger and mint. Season with approx. 1 level tsp salt and approx. 1⁄2 tsp pepper.
Form 8 meatballs from the minced meat mass with wet hands. Heat the oil in a large pan. Fry the meatballs in it (possibly in portions) at medium heat for 8-10 minutes on each side.