Peel, wash and roughly grate the potatoes. Wash the apple, also grate coarsely around the core. Squeeze potato and apple grater in a tea towel. Mix egg yolk and caraway into the mixture.
Wash the meat, dab dry and bread it with the potato mixture. Press the breadcrumb coating firmly. Heat 1 tablespoon of oil in a coated pan. Fry the meat on both sides for about 5 minutes each.
Clean, wash and drain the lamb's lettuce. Peel and finely chop the onion. Wash, quarter, seed and cut the tomatoes into small rhombs. Mix vinegar with 3 tablespoons of water. Season with salt and pepper.
Fold in the remaining oil. Mix the salad with the vinaigrette. Arrange meat and salad on plates.