Try it: put some loose cooked food in a small plate, let the guests taste it before buying it, and then buy it when it is delicious. Of course, considering the cost, not too much.
Matching: for example, buy a catty of A cooked food and send some small B cooked food. The number is not too much. Everyone has the mentality of taking advantage, and there are few satisfied guests. In addition, by the way, I made an advertisement for cooked food B. If it is delicious, guests will buy cooked food B. ..
Discount: how much to send or how much to send. For example, guests can choose to give other cooked food or the same cooked food. Similar to the second scheme, it can be used for reference.
Publicity: the first thing to do when opening a new deli is to let people know. Therefore, publicity is essential, and the effect will be better if all kinds of concessions are brought in the publicity. Of course, posters are also important. If you can't do it yourself, I suggest asking professionals to help you.