Wash the potatoes and cook for about 20 minutes
Mix the quark and mineral water until smooth. Season to taste with salt, pepper and paprika. Sort the sprouts if necessary, wash and drain
Mix vinegar, salt and pepper. Whip 1 teaspoon of oil into it. Wash and quarter the tomatoes. Wash and drain the lettuce and pluck smaller if necessary. Mix tomatoes, lettuce and marinade
Cut onion into rings. Wash the meat, dab dry. Heat 1 tsp. oil in a coated pan. Fry the meat for 4-5 minutes on each side. Season with salt and pepper. Add onion rings and fry until golden brown
Drain the potatoes and quench. Cut lengthwise. Fill in quark, sprinkle with sprouts and paprika. Arrange everything