For the noodles, boil 3-4 l salted water (1 teaspoon salt per litre). In the meantime wash and roughly chop the tomatoes. Chop the olives finely. Peel and finely chop onions and garlic. Wash oregano, shake dry, chop.
Mix tomatoes, olives, onions, garlic, oregano, capers and oil. Season to taste with salt and pepper.
Add the pasta to the boiling salted water and cook according to the instructions on the packet. Grate cheese finely. Drain the pasta and mix immediately with the cold tomato sauce. Serve with parmesan.