Wash the potatoes and cook for about 15 minutes in boiling water. Then rinse with cold water, peel and cut in half lengthwise. Soak the rolls. Clean the white cabbage, cut out the stalk. Cut cabbage into fine strips.
Peel, wash and grate the carrots. Bring vinegar to the boil briefly. Season with salt, pepper and sugar. Pour over the prepared vegetables while still hot. Knead vigorously and leave to stand. Peel and chop onion.
Knead the minced meat, squeezed bread roll, onion, egg and tomato paste. Season with salt and pepper. Form small meatballs from it. Fry in 2 tablespoons of oil while turning for about 8 minutes. Evenly fry the potatoes in another 1-2 tablespoons of oil
Season with salt and pepper. Cut feta cheese into fine slices, wash and chop thyme. Spread on the meatballs and put them on a baking tray. Bake briefly under the hot grill. Mix salad and remaining oil, season if necessary.
Serve with the meatballs and potatoes. Serve garnished with pepperoni and parsley.