Wash the asparagus, cut off the woody ends. Steam asparagus in a pot with little water for about 10 minutes. Wash the meat, dab dry and cut into 3 pieces each and tap flatter.
Wash lemon hot and rub dry. Grate the peel with a fine grater. Halve the lemon and squeeze the juice. Drain asparagus and rinse in cold water. Tie the asparagus with kitchen string to 4 packets of 6 sticks each.
Cover the packet with butter flakes, season with salt and pepper and place on a baking tray lined with baking paper. Heat oil in a coated pan. Fry the meat for 2-3 minutes on each side.
Sprinkle Parmesan cheese over the parcels and grill under the grill of the oven for about 5 minutes until golden brown. Remove meat from the pan and keep warm. Add lemon juice to the meat. Add lemon zest, whisk and season to taste with sugar and possibly salt and pepper.
Remove the asparagus and brush with the melted butter from the baking tray. Arrange meat and asparagus on preheated plates. Drizzle meat with roasting mixture. Garnish asparagus with olives and lemon slices.