First of all get your tuna ready. Empty a can of tuna in a small bowl, add salt and pepper and throw in a very heaped table spoon of mayonnaise. Mix it all up with a fork and you're done.

Optionally you can add chopped onions and sweetcorn, this is the time to throw that in too. Mix well.

Lightly toast some pitta bread in a toaster or under a grill.

Fork the tuna mixture onto the pitta bread. I normally portion a small ( 160g ) can to a large pitta or half the can for a small pitta so it's fairly thick layering.

If you are accompanying with something else like vegetables or making it for the kids just use a thinner layer of tuna.

Grill it for 10 minutes on medium / high or until brown. remember you are not trying to cook the tuna here, you're just heating it through.

Now add a layer of cheese, I like strong cheddar but any will do.

A sprinkle of mixed herbs such as oregano or just mixed Italian herbs won't do any harm.

Grill it again for 10-12 minutes on medium / high or until the cheese is nice and golden.

That's it - its going to be piping hot inside so let it cool for 10 minutes before tucking in.