Method of preparation
Peel the onion and dice very fine.
Add the 3 tablespoons of mayonnaise and the can
of tuna in oil.
Mix everything very well, it is better if you
leave it set several hours so that the onion will soften.
Spread over the bread slices.
You can decorate these to your taste with olives,
red pepper, peas etc.
Any kind of bread can be used, but I recommend
fresh or just made bread, but since we do not always have this
type of bread. If you decide to try this even sliced white bread
can be used.