What does it add? I always make my tuna salad the same. Tuna , lemon juice , a little grated onion or onion powder, finely diced celery s/p little mayo a little sour cream lately its been Greek yogurt. And it is good and creamy. My husband asked recently why I never add hard cooked eggs? I just cant . I love hard boiled eggs . I eat them often but I don't see why I would add them to tuna salad. Those of you who like your tuna with egg what does it add creaminess ,flavor? Sorry if this seems like a dumb question ,but I'm just curious.