Wash the potatoes and cook in boiling water for 15 minutes. In the meantime, rinse the chicken filet and pat dry. Cut the chicken filet open to about 2/3 so that it can be unfolded.
Season meat with salt and pepper. Drain the asparagus and collect the liquid. Put ham and asparagus on the chicken filet, fold it up and fix it with wooden skewers. Drain and peel the potatoes.
Heat 1 teaspoon of oil in a frying pan, fry the fillet on each side for about 3 minutes. Add the potatoes. Deglaze with about 100 ml asparagus water. Put the cheese slice on the meat, cover and let it stew for about 5 minutes.
In the meantime, clean and wash the salad. Wash, clean and halve the tomatoes. Mix vinegar, salt, pepper and 2 teaspoons of oil. Season to taste, sprinkle on lettuce and tomatoes. Cut cress from the bed.
Serve chicken filet with potatoes and salad, sprinkle with cress.