hi Redclanger
I don't think they ahve a common name - in that I don't think you'd be able to buy them. I always dry some runner beans - they look lovely in the jar!!
Once in a while, I boil up a load (seperate the white ones from the purple first) and freeze them in 'tin' sized portions so we can use them. My favourite (and bear with me on this!) is 'beanburgers':
mash up a portion of cooked beans (red or purple looks best, but any will do - have been known to wash the sauce of baked beans...)
gently fry a chopped onion and some garlic till golden
stir onion into mashed beans
add seasonings (salt, pepper, chillie powder, parsley) to taste
add enough breadcrumbs so that it all sticks together
form into patties
fry in a little oil until nice and brown on one side, then turn over (carefully) and fry on the other.
Depending on how 'tidy' a cook you are, these can be served up at quite posh dinners - everyone seems to like them and no-one has any idea what they are!! ;D
We like them best either with garlicky mash and greens in winter, or with baked potato and salad.
Love and compost
Linda