Please feel that you can vent on here, freely, Detroit. Nothing crass about it. That sounds really hard.
I'm so sorry there isn't more help out there for you. This might sound a bit off the wall, but don't the Hare Krishnas cook without seasonings/spices? They are cultish, but I've been fed by them before, just had to sit through some tedious chanting. I wonder if other churches/temples or religious groups might be worth asking, too?
I've been there, fwiw, though I don't have allergies. Eaten out of bins and sometimes got some very good quality food, too. Supermarkets?
Sending you warm wishes and all the best. Hope that something turns up for you soon. x