This native Australian vegetable was eaten by the early European settlers, Captain Cook also gave it to his men to eat to fight scurvy and many of the early convicts owed their lives to this spinach like plant.  Joseph Banks, the famous botanist, took it back to England and it was grown, and probably still is, in many English gardens.

Cook and use as you would spinach, but before eating blanch the leaves in hot water for about 3 mintues, then rinse in cold water before using them in salads or to cook, this removes the toxic oxates which can be harmful if eaten in large quantities.

If you want to grow Warrigal Greens or more info <http://www.outbackchef.com.au/shopping/leaves-greens/34/1>