According to legend, during the Qin Dynasty, in order to build the Great Wall, Chunkunshan once stationed 6,543,800 troops in Meng Tian. Inspired by his visit to the surrounding villages, Meng Tian asked the soldiers to stew food in a pot. "One-pot stew" balances nutrition and strengthens soldiers' physical strength. Later, migrant workers and soldiers requisitioned from all over the country brought this simple and delicious practice back to their hometown. In the Song Dynasty, "one pot stew" began to spread widely among the people. With the change of time, the clever Donghe people in Baotou constantly improved this kind of food and created a delicious food that people can't forget-braised noodles in iron pot.