Mix the milk, eggs and flour into a smooth batter and season.
Blanch the asparagus in hot water for about 3 minutes. Fry a little on all sides in a pan without oil over medium heat, remove and set aside.
Bake two omelettes with 1 tablespoon of oil from the batter. Place two slices of slices on each omelette, put four stalks of asparagus on top and roll up. Cut diagonally into three equal pieces. If necessary, brush with a little hollandaise sauce and bake in the oven at 150 degrees for about 15 minutes.