When I was a kid and went to church camp we always had a day where we only ate rice and beans to experience what it was like for the poor people in the world who only ate rice and beans. It was a miserable day for everyone, and kids usually sneaked candy bars because they couldn't handle the simple meal.
Since I have been here, I have eaten rice and beans for breakfast, lunch and dinner. It cracks me up to think of how I imagined the horrors of living off rice and beans when I was little, and now it is what I eat. Even better, is that I love rice and beans, and actually enjoying eating it for every meal!