Lazy tuna salad

This is a very easy and cheap tuna salad, a dish that kept us going through our student years. You can't go wrong with it and it can also be a main dish when the weather is hot.

So, you will need:
- Pasta (penne or bows)
- A can of tuna in brine
- A medium onion
- Sweet corn
- Mayonnaise
- Salt and pepper

Cook the pasta and drain. Drain the tuna and put it in a bowl. Chop the onion in small pieces and add to the tuna, add some salt and pepper and mash with a fork. Add the pasta and the corn. Allow to cool before adding the mayonnaise and putting the salad in the fridge.

Enjoy!