Chop the lettuce, wash it and let it drain. We put it in a fountain or salad bowl. We add salt. Cook the two eggs in a small saucepan with water and vinegar for about 10 minutes. After the time, we drain the water and pass them through cold water. Once they are cold, we can peel them and reserve them.
Add the chopped chicken breast and the shredded mackerel. We mix.
Add the chopped egg, the grated cheese and the seashells. We remove.
