Wash and clean the soup greens and cut into cubes or rings. Wash, peel and grate potatoes. Whisk eggs. Add potatoes and vegetables, season with salt and pepper.
Melt the butter in an ovenproof coated pan. Add the potato and vegetable mix and let it simmer in the preheated oven (electric cooker: 200 °C/ circulating air: 175 °C/ gas: see manufacturer) for about 20 minutes.
Wash oregano, shake dry, pluck leaves from the stalks. Turn the tortilla over onto a board. Sprinkle with oregano and add herb curd cheese. Sprinkle with coarse pepper if necessary.