Sichuan-Chongqing tripe is a traditional food in Sichuan-Chongqing area, also known as "maocai". Sichuan-Chongqing beef omasum is a hot pot dish cooked with meat, vegetables, gluten and other ingredients. Sichuan-Chongqing beef omasum is a unique and spicy food, which is made by cooking all kinds of ingredients in a pot, adding spices such as hot sauce, pepper and Chili oil, and sprinkling some spices such as sesame and coriander. Sichuan-Chongqing beef omasum is widely used in cooking because it can absorb soup and delicate flavor. Therefore, the words "Mao" and "belly" in the names of Sichuan and Chongqing dishes essentially refer to cooking methods and ingredients.