How lovely bluejan - they might be a little small yet tho' - the pods probably need to be about 6" or a bit more but it depends on the variety - you could try a few and see.
If you've not had much rain lately and the ground is dry they could probably do with a good soaking about now to help the beans to swell.
You can cook them in their pods and eat them whole when they're very small.
I think they're best when the beans themselves are just about the size of my thumbnail - pod them and plunge them in a pan of boiling slightly salted water for about 3 minutes - there's a fashion now for removing their 'little jackets', but if they're very fresh you don't need to do that.
I love them served with fresh parsley sauce - we had some last night but mine were planted back at the end of October and they overwintered and produced an early crop so we've been picking them for a while now and they're nearly over now.
If you want to do that another year, the variety Aquadulce Claudia is the best one for overwintering - mine were covered with at least 18" of snow for ages, but I didn't lose a single plant.
Enjoy - they're one of my favourite vegetables