Casserole is a popular consumer food, which originated from Chongqing, Sichuan. Through technical refinement and improvement, it combines Chinese medicine with food culture and finally becomes a delicious staple food that everyone praises. Tianwang Casserole's soup is made of nearly 21 kinds of precious medicinal materials, which has been boiled for more than three hours. Its characteristics are: the entrance juice is thick and fresh, spicy and mellow, and consumers at all levels can eat spicy and delicious pasta because of its variety of colors and reasonable consumption grade. The signboard of Tianwang Casserole, with its unique meaning and ingenious conception, makes diners feel strange, stay and taste, and eat step by step, which is really unforgettable. In the past two years, there have been more than 211 authentic Tianwang casserole shops all over the country. In many shops, each table is turned over 3-5 times at lunch and more times at dinner.