Tuna salad open faced sandwich on some bread heels. I never knew that tuna came in cans until I went to college * ... now I buy it in retort packs and every once in a while I crave it.
Minced scallion, a little bit of chive, celery salt, minced spicy bread and butter pickles, Cain's mayo and a drizzle of slaw dressing. Mix well and taste.
* growing up where I did it was called fish salad and was whatever fish was left over the next day. The best were blowfish or porgies IMHO.