2. Husband and wife lung slices are a traditional dish in Chengdu, Sichuan Province, which belongs to Sichuan cuisine. This dish was created by Guo Chaohua and Zhang Tianzheng. Usually, beef scalp, beef heart, beef tongue, beef tripe and beef are the main ingredients, marinated and then sliced. Add Chili oil, pepper noodles and other auxiliary materials to make red oil and pour it on it. It is fine in production, beautiful in color, tender and delicious, spicy and fragrant, and very palatable.

3. Husband and wife lung films have a history of more than 70 years. There is a legend about the origin of "husband and wife lung slices": It is said that in the 1930s, people near Chengdu, the imperial city, ate animal meat instead of animal internal organs. The price of viscera is very cheap. At that time, there was a young couple, the man named Guo Chaohua and the woman named Zhang Tian. They found that these cheap internal organs were profitable. They can easily go to the slaughterhouse in the early morning, rummage through the accumulated internal organs, select the parts with food, clean them up and cook them in the pot. After two people's research and experiments, the delicious food "husband and wife lung slices" was born.