Here is a question for all my fellow gardening friends! These were growing in with my yellow beans. I don't know where they came from. They are not like my pole or bush beans, kind of flat altho one had a small bean in it when I broke it open. They taste like beans. What are they? How do I cook them? How do I freeze them? Should I have left them on the vine longer?? Thank you all so much for your help!