Put the water onto boil for the pasta while you mix up the sauce.

Pour the oil in a large bowl. Cut the tomatoes into strips and add to the oil. Add the chopped parsley, minced garlic, olives, and capers. Flake the tuna up a bit so it spread out and add it, then mix everything together and let stand until the pasta is done.

Cook the pasta and drain, then add to the tomatoes et al and mix together. Add salt and pepper to taste then mix in the cheese and serve.