Add the tuna and cook together for 1 minute more. Season with a little salt and lots of ground black pepper. Drain the pasta and add to the tomato and tuna sauce. Toss together until well combined ...
Stir in the tuna and salt. Toss the pasta with the sauce, loosening with a little pasta water if necessary. Serve the tuna pasta sprinkled with the remaining parsley and freshly ground pepper.