There are many theories about the origin of farmer's grilled fish. The most widely spread theory is that it originated from Zhuge Liang in the Three Kingdoms. It is said that Zhuge Liang, who lived in seclusion in Langya County at that time, loved grilled fish. The ingredients and methods of grilled fish are different from ordinary grilled fish, making it unique. Whenever Zhuge Liang has a family dinner, he often invites a few friends to enjoy delicious grilled fish. Later, Zhuge Liang left Longzhong and assisted Liu Bei in conquering the world. After Liu Bei proclaimed himself emperor in Chengdu, Zhuge Liang recommended him to the palace. Not only did Zhuge Liang never tire of eating this grilled fish, but Liu Bei, Guan Yu and others also liked it, and it became a royal family. An indispensable delicacy at the royal banquet. During the Battle of Chibi, Lu Su went to discuss with Liu Bei the alliance between Wu and Cao Cao, and Liu Bei entertained him with grilled fish. Lu Su had never eaten such unique and delicious grilled fish, so he asked Liu Bei what the name of this grilled fish was. Liu Bei laughed and said that this dish was created by Mr. Zhuge and it didn’t have a name yet? After thinking about it, Lu Su said that since Mr. Zhuge created the delicacy, let's call it "Zhuge Grilled Fish". Zhuge Liang listened on the sidelines and felt that something was wrong. Explained: This dish is still a recipe that I learned from the villagers’ grilling fish techniques when I was a farmer in Longzhong. It would be more appropriate to call it “Farmer’s Grilled Fish”. Therefore, "Zhuge grilled fish" is also called "farmer grilled fish".