The specific steps to join the brand in pre-cooked dishes are as follows:

1. Learn about the joining policy: you can learn about it through official website or by phone.

2. Submit an application for joining: you need to provide basic information about the individual or company, and explain your understanding and business plan of the prefabricated vegetable industry.

3. Review and evaluation: Ma Yun will review and evaluate the application for joining, including business ability and financial strength.