I know, I know. Ewww! Canned fish? Well, yes. My mom and I used to eat sardines on saltine crackers when I was a kid, and for some reason, the taste has always been tantalizing to me. It's like an unflaky tuna, and when packed in olive oil, it makes a wonderful impromptu bruschetta.
Whenever I have leftover cooked cannellini beans, I mash them up with some sardines, a trace of the olive oil the sardines are packed in, fresh squeezed lemon juice and chopped Italian parsley, and then I snack on it for a few days. At times it means I get up in the middle of the night to sneak bites before brushing my teeth, lest I go back to bed with sardine breath and receive unwelcome attention from my sleeping cat.
Sounds gross? Don't knock it 'til you've tried it!