Mix together the tuna, mayonnaise and sweetcorn in a small bowl.
Spoon the filing into the two rolls, wraps or pitta breads and serve.

#Tips:

For extra fillings you could add lettuce, grated carrot, cheese or peas.

If you're not a fan of tuna, use tinned salmon instead.

If you're making this with kids, tins that have ring pulls may be easier for them to open. The lid of a tin is very sharp, so watch those fingers!