For the lasagna, cut the green asparagus into pieces of about 1 cm and sauté in olive oil. Add bacon and onion, if desired, season with garlic, oregano, salt and pepper.
Add white wine, tomatoes, green asparagus and fresh basil.
Butter the baking dish and line with pastry sheets. Then evenly spread 1/2 of the asparagus mixture, 1/3 of the horseradish-flavored béchamel sauce on top and also sprinkle about 1/4 of the grated cheese.
Then again a layer of dough sheets and on this the second half of the asparagus mass, 1/3 of the béchamel sauce and 1/4 of the amount of cheese.
Again a layer of pastry sheets and cover it with the remaining béchamel sauce and the remaining grated cheese.
Bake in the oven at about 180 °C for about 30 minutes.