I can't believe I am so removed from where my food comes from that I have to ask this question.
I grew some green beans this summer, I think the seeds were labeled 'filet beans'. After a few harvests, I got lazy and the seeds started plumping up- so can I shell them and cook them like cranberry beans? I think the answer is obvious, but would hate to poison anyone!
It's not a scientific term but filet bean usually means a french style green bean (small, compact, best eaten as a snap bean). But any bean can be eaten as a shelled bean, and you don't need to wait until the pods dry completely. You can shell beans as soon as the pods start to wilt a bit. Relax, beans are 100% healthy from start to finish.