Peel the asparagus and cut off the woody ends. Bring water to the boil in a wide shallow pot, season with salt and 1 teaspoon sugar. Cook the asparagus in it for 13-15 minutes until al dente, remove and place on a plate.
Measure out about 150 ml of asparagus water. Clean, clean and slice the mushrooms. Heat oil in a pan. Fry the mushrooms for 3-4 minutes, turning them brown. Mushrooms with flour
Deglaze with asparagus water and milk, possibly boil down a little thickly, season with salt and pepper. Wash parsley, dab dry, pluck leaves from the stalks, chop finely and stir into the sauce.
Cut the ham slices in half. Spread slices of bread with some sauce, cover with ham and asparagus and drizzle with sauce. Grate the cheese and sprinkle over it. Gratinate bread under the preheated grill of the oven for 4-5 minutes until golden brown, take out, arrange on plates and sprinkle with pink berries.