Could the size of platters in artwork be adjusted larger?
Alternatively, they could be renamed to plates and a larger platter recipe can be added.
In my mind, a platter is what you put the whole turkey and roast vegetables on but the current objects only hold 1 or 2 food or other objects.
Regarding a "plate" object, you can currently buy a decorative plate in an NPC shop so -- while I don't think it would see too much use -- I do kind of like the idea of someone doing brisk business selling commemorative dishes.
*quietly rolls up a new character*