Housemade Chinese wheat bread (Mo 馍) filled with seasoned ground pork, bell peppers, scallions and pickled vegetables. Rougamo or Rou Jia Mo 肉夹馍 is a street food originated in northwestern China's Shannxi Province 陕西 and widely consumed all over China. It is considered to be one of the world's oldest type of hamburgers, dates back more than 2000 years ago. CONTAINS: Wheat, Soy