Tuna fish sandwich

A tuna fish sandwich, also called a tuna salad sandwich or simply a tuna sandwich, is made from canned tuna that is usually mixed with mayonnaise and other ingredients such as celery or onion to form a tuna salad, along with other common sandwich vegetables. It is most often served between slices of sliced bread. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/