The local dish is shepherd's purse. There is not only a proverb that "shepherd's purse is a panacea for March 30 thousand in spring", but also a saying that "shepherd's purse is an elixir for spring" It can be seen that shepherd's purse is not only a delicacy, but also a panacea. In traditional Chinese medicine, shepherd's purse has a wide range of medicinal value and is known as "licorice in vegetables".

On March 3, there was a legend about the origin of boiled eggs with shepherd's purse: during the Three Kingdoms period, the famous doctor Hua Tuo came to Miancheng to collect medicine. One day, he was caught in a heavy rain and took shelter in an old man's house. He saw that the old man had a headache, dizziness, pain and embarrassment. Hua tuo immediately diagnosed the old man, picked a handful of rice dishes in the old man's garden and asked him to take juice and boil eggs to eat. The old man obeyed, took three eggs and recovered. The story spread, people scrambled eggs with rice in succession, and the craze spread all over urban and rural areas. Hua Tuo treated the elderly on March 3rd. Therefore, on March 3rd, scrambled eggs with rice became a custom in Mianyang, and then it became popular in Jianghan Plain.