The couple's lung slices should be cold dishes made of five parts (five treasures) rich in nutrition, such as cow scalp, beef heart, beef tripe, beef ribs, beef and mutton, instead of "lungs". It is said that in the late Qing Dynasty, there were many vendors in the streets of Chengdu who sold cold beef offal. The main materials are discarded low-cost leftover bits and pieces of beef offal, which are deeply processed, marinated, cut into pieces, mixed with various sauces, soy sauce, Chili oil, pepper, pepper powder, sesame noodles, etc., with unique flavor, good quality and low price. Especially loved by rickshaw pullers, porters and poor students. In the 193s, Sichuan people Guo Chaohua and Zhang Tianzheng made a living by selling cold beef offal, and made a cold dish lung film, which was golden red in color, spicy and delicious. Because of the delicious food, the cold beef offal made by them became more and more popular! Husband and wife lung slices, a well-known traditional cold salad in China, are one of the top ten classic dishes of Sichuan cuisine.

Cooking skills: First, all the food is marinated in soy sauce, naturally cooled, and then cut into thin and large blades. It is made by mixing Sichuan local oil chili pepper (Chili oil), pepper oil (pepper powder), spices and hot pot side dishes with cold dishes. This dish is low in cost, meticulous in preparation, spicy and mellow in flavor, attractive in color, and deeply accepted and marketed by the general public. In 217, it ranked first in foreign restaurants, and the Sichuan cold salad "husband and wife lung slices" condescended. The real name of husband and wife lung slices is "husband and wife waste slices", because its raw materials are made of beef heart, liver, belly, tongue, sheep tendon, beef lung, hair and beef and mutton scraps discarded in beef shops.

As the founders of this special food, Guo Chaohua and Zhang Tianzheng, the husband and wife are close when they are shouting in the street, so everyone calls this kind of cold beef offal "husband and wife lung slices". Xinjiang Pepper Chicken is a famous Sichuan dish. Generally, beef scalp, beef ribs, beef heart, beef tripe, beef and mutton are used as the main ingredients, and then marinated in sauce, then sliced, and finally served with chili pepper oil, pepper powder and other auxiliary materials to make Chili oil and pour it on it. Because the leftovers from beef shops are used as food, the price is low and the taste is good, which is very popular. Everyone calls this kind of cold beef offal "husband and wife lung slices" Because the word "scrap" is ugly, and there are beef and lung tablets in the food, we took the initials "lung" of "scrap" and renamed it "husband and wife lung tablets". Later, they found that the taste of beef lung was not very good, so they canceled it, but the name was still widely circulated.

Husband and wife lung slices, a famous Sichuan dish, can be traced back to the end of the Qing Dynasty. On the streets of Chengdu, Sichuan, some mobile vendors put leftover bits and pieces such as beef offal, sauce and marinated them with spices such as pepper, pepper and Chili oil, and walked the streets, making the finished products spicy and delicious, which was favored by everyone. Later, in the 193s, a couple named Guo Chaohua and Zhang Tianzheng in Chengdu promoted this dish with beef scalps, beef ribs, beef and mutton, beef hearts, beef tripe and beef lung materials, and everyone called it "husband and wife scrap slices". Later, when it was found that "scrap" was ugly, it was changed to "husband and wife lung slices". Eventually, because beef lungs didn't taste very good. Therefore, this dish is called a well-known specialty food.