Kong Xin Cai Recipe - This entry was posted on june 27, 2012, in vegetables and tagged 空心菜, 蕹菜, kong xin cai, kongxincai, ong choy, water spinach. Kong Xin Cai Recipe / This entry was posted on june 27, 2012, in vegetables and tagged 空心菜, 蕹菜, kong xin cai, kongxincai, ong choy, water spinach.