Since runner beans were mentioned somewhere, I figured it's time for a post on beans. They're not exactly low-carb, but they're low-ish, and they're a good source of protein and fat for vegetarian LCHFers. They're also incredibly versatile and have a surprising range of different flavours.
As proof that you can find absolutely anything on the Internet, I present (ta-da) The Bean Institute:
beaninstitute.com/beans-aro...
Which tells you everything you could ever wish to know about the many exciting variety of beans that humanity has created.
You can even take a quiz and find out what kind of bean you are. I am apparently a small red bean.
There are only about half-a-dozen species of edible beans, and those have been differentiated into hundreds of varieties by careful breeding. Check this out: