1 tuna can – 200g of Penne pasta (5mn quick cook) – 1 diced onion – very good olive oil – a dozen of black olives (optional) – fresh grated Parmesan.
Cook the pasta in boiling water for 5 minutes.
Meanwhile, fry the onion in a pan for 1-2 minutes.
Add the tuna. Stir well and cook for a further 3 minutes.
Drain the pasta and return it to the pan.
Add the black olives. Stir thoroughly.
Cook for a further 2 minutes.
Drizzle with the olive oil and serve with the Parmesan.