Add the pasta and cook for 3-4 minutes, or until tender. Drain well, then add the pasta to the pan of ragu and mix well to coat the pasta in the sauce. Serve sprinkled with the Parmesan.
Drain and check the seasoning. Divide the pasta between plates, top with the sauce, grate over some Parmesan, garnish with basil leaves and serve. The Bolognese sauce can be made up to a day ahead ...