Tuna salad is a dish made primarily from tuna and mayonnaise, but can also contain other ingredients such as celery, onion, hard-boiled egg, pickles, mustard, and salt and pepper. It is often served on bread as a sandwich, in a wrap, or on a bed of lettuce as a salad. The dish is popular in many countries, particularly in the United States, where it is a common lunch food. In Hebrew, tuna salad is known as סלט תונה (salat tuna). In French, it is called salade de thon, and in Spanish, it is referred to as ensalada de atún. The dish is versatile and can be customized with various ingredients to suit different tastes. It is also a convenient option for meal prepping due to its long shelf life when refrigerated.