Cut the bread rolls and fill each one of them with half of the tuna.

Spread 1 tablespoon of lemon juice on the tuna in each roll.

Press the bread rolls in the sandwich toaster for 2 minutes or until bread rolls are brown (Don't over-toast them, they would be hard to handle).

Re-open each roll, squeeze in mayonnaise, spread sweet corn, arrange pickles and finally put the lettuce on top.

Fold bread roll and serve.