First wrap the tenderloin in aluminium- or plastic foil and place it for two or three hours in the freezer. Then - after that time – cut the beef in thin slices with a very sharp knife, an electrical cutting machine or an electrical knife. The frozen condition of the meat makes this operation quite easy.
Place the slices on a plate in a way that they cover each other like fan blades and sprinkle some salt and pepper over it. Remove the stems of the arugula and arrange the leaves on the meat. Add some fresh lemon juice and olive oil. Decorate it with a slice of fresh lemon, spread now over this creation some grinded parmesan cheese and serve it with a fresh baguette.