I don’t see anything in the Forum talking about Wax Beans.
I use wax beans as a pasta substitute. The entire can, which make one substantial meal, has 7 net carbs.
I saute them first in olive oil, along with half a small onion(chopped), and then finish it with some butter. Then I add cheese and and put it in an ceramic baking dish, add some additional cheese to make a crusty top, and put in the toaster oven for around 10 minutes. Very satisfying.