many times I add chopped pickle and olives to the tuna - you can even add relish - but I prefer the chopped pickle

I once roomed w/ two girls ("Three's Company"-style!) Shannon's Mom visited often and she put finely chopped granny smith apple in her tuna salad instead of diced celery. It was different- but very yummy!

I like making Tuna Quesadilla's. Tuna mixed w/ a little mayo, mustard, onions, salt and pepper, added to a tortilla w/ cheese and some Avocado, toasted on a pan. Yummy.

I prefer Genoa brand Italian tuna in olive oil, some black olives, and lettuce, maybe some celery or finely shredded carrots.

ETA and hold the mayo, I can't stand that stuff on a sandwich