Begin by peeling the lettuce leaves and layering them on a piece of parchment paper.

Finely chop the onion and pickles, then combine them in a bowl.

Add shredded pre-cooked chicken, cream cheese, and sweet corn to the bowl and mix well.

Spoon the filling onto the lettuce leaves, fold them over, and roll everything up using the parchment paper.

Slice the roll in half and serve.