What is the stuffing of vegetable dumplings with lights in wuqing district?

Wild vegetables, sauerkraut, potherb mustard, bean stuffing. Wuqing district's Zhailao Wanjia Denghuo Store is famous for its vegetable dumplings, which are made of corn flour and common flour, and contain wild vegetables, sauerkraut, potherb mustard and bean paste. Wuqing district belongs to Tianjin. Located in the northwest of Tianjin, the middle and lower reaches of Haihe River system.