What do you put in the bread crumbs for tuna salad filler?

Tuna salad typically does not contain bread crumbs as a filler ingredient. Some common ingredients in tuna salad include tuna, mayonnaise, celery, onion, and seasonings. It may also include hard-boiled eggs, pickles, or other vegetables. Bread crumbs are more commonly used as a coating for fried foods or as a filler for meatballs, meatloaf, and similar dishes.