Boil plenty of salted water in a large saucepan. Drop a dough at a time and boil it for 2 minutes, then helping with a colander and a skimmer pass the dough in a container with water and ice. Do the same for the other sheet. Drain the sheets and spread them on a marble. Fill them with the ham, then the béchamel, the cheese and the fior di latte. Roll them up and place them in the freezer for 10 '. Then cut into slices about two centimeters and place them in a baking pan on a layer of béchamel, cover with the remaining béchamel and a tablespoon of bolognaise each slice, sprinkle with the cheese and bake in the oven at 180 ° C for about 20 Serve.
