Beans and rice are a biker's friend...
I use the dried beans... they're way cheaper than the canned stuff, and you can make them the way you like them. The key is to soak them overnight in cold water to rehydrate them, drain off the soak water, add fresh cold water, add a little olive oil or pork fat as your diet may allow, and let them simmer over a low flame for a few hours. Red beans, black beans, and pinto beans usually work best for this. Chop a little onion & celery in there for flavoring...