Bring a large pot of salted water to a boil and prepare pasta according to package directions. Set aside 1 cup pasta cooking water and drain pasta. Return pasta to pot; crumble pieces of cheese over pasta.
Add ham, salt and pepper to taste and parsley to pasta mixture. Pour in 1/2 cup pasta cooking water and toss or stir until cheese is melted and pasta is coated. Stir in more cooking water if mixture looks dry.
