Spanish Tuna Sandwich (bocadillo de bonito)

In Spain, bocadillos (also known as bocatas and sandwiches) are an alternative to tapas and pintxos.

2 slices of bread (rustic is best) per person, toasted lightly
1 can tuna  
1 roasted pepper, finely chopped
8 black olives, finely chopped
the white of one boiled egg, chopped
2 sweet pickles, finely chopped
1/2 red onion, finely chopped
olive oil mayonnaise
lettuce


Mix all the ingredients very well in a bowl. Scoop some on a slice of bread, add lettuce and cover with the other slice. Cut in half in diagonal.