How to write an advertising banner for a barbecue stall better?

I think the most important thing about advertising banners is the content that attracts customers, such as the activities you do, how much you want to eat, how much discount you can get, and your characteristics that are not found elsewhere. Just write down what you have; there is also concept hype, such as on-site production to ensure freshness, etc. In general, just write down your biggest highlights