Introductory Bean Recipe

I just cooked a black-bean based dish for my meat-loving parents and now my Dad is asking me for another bean-based recipe to try out for a spin himself. I'm at a bit of a loss at what to recommend for someone who's never cooked with beans before, but I want it to be a simple and tasty recipe so to make my whole schtick about how it's unnecessary to eat meat three times a day more convincing and do-able for him. Any suggestions?