How to prepare sea beans?

At Whole Foods today my daughter and I spotted something I have not seen before. It is a green veggie called a sea bean. We tried a bit and it has a very strong, salty flavor we both enjoyed. It was comprised of small, bright green stalks with small buds on them . I have looked online and not found any recipes or suggestions for how to cook or serve them. Any help, links or ideas would be most welcome!