Pour the flour on a table and form a small volcano in which you will pour salt and water. Knead the dough until it is homogeneous and elastic.
Using a pasta machine, start creating the puff pastry (pass the dough in the machine until it is 2 mm thin) and cut it into a ravioli shape. Prepare the filling by mixing pumpkin, Pecorino cheese, marjoram and Parma Ham. Add a 1/4 teaspoon of stuffing to each ravioli and cover with another rectangle of puff pastry. Press along the sides to make sure that the two layers of pastry do not separate. Cook the raviolis in boiling water and remove them from water when they start coming up to the surface. Season them to taste, with butter and sage or vegetables sauce.