Growing up, my sister would eat only three things from Chinese buffets: black olives, hard boiled eggs, and egg rolls. Occasionally we could convince her to get something like the sweet and sour chicken (sans the sauce) or fried rice, but you could always figure out what her plate would be on each trip. It easily translated over to Subway too, when she would get extra black olives on her sandwiches. Yup. They'd open a whole new can for her when she came.
Now, all I need to get her for Hanukkah this year is this. Not that she'd use any of the recipes. Her favorite recipe is two steps: Use can opener to open can; enjoy!