Cut all the artichokes in half and bake them in the oven for a few minutes. Fry the sliced artichokes until they are golden brown. Season the beef with salt and pepper and cook it as normal on the grill or hot plate. When the meat is cooked, slice it and arrange on a hot plate, garnishing with flakes of sea salt and extra virgin olive oil. Decorate with the four types of artichokes and serve immediately.