Hello,
I have two thought about food that I think could help add atmosphere to the setting, if in a little manner. The first is the fact that in barovian taverns, you do not see barovian food on the menu, only Tigen's rest sells Mamliga for example. However in Dementlieu they do have all the foods that one would find in a french inspired land, so Barovia should also have this little detail. It isn't alot, just adds to the setting IMO when barovian foods are available in barovian taverns.
The other thought and idea is that there can be a cooking profession. This one is pretty simple, you would make various foods, some with minor benefits like virtue and heal minor wounds. Just like you can find the food to do that IG, but now with this concept you can do it yourself. Primarily though this would be an rp thing, as a lot of food is mostly for rp. Also in the same vain, we could have people who can brew various drinks, ie wines, tsukias and so forth.
I would like to hear people's thoughts about these ideas.