Seems like something that is probably in the works somewhere, but I havn’t seen it anywhere.
If you have a fire/cooking implements, you shouldn’t have to starve until you can cook with new ingredients. I can’t see any valid reason to not be able to reheat food since the temperatures rework.
Might even be a good idea to increase the temp on tiles adjacent to fires, since apparently being in a 6/2 room adjacent to a fire is insufficient to thaw/keep food thawed in early spring mornings/nights