Boars Head Franks. Nathans is riding on nostalgia. I've tried to go there a couple of times, and it has been awful -- cold fries, no way to hold all the food, nowhere to sit, wind blowing food around.
I believe the TA has concluded that the more food is sold in the subway, the more garbage there will be -- especially wrappers and spoiled food to feed the rats. From what I've seen, with so many passenger slobs, that's the case. On balance I'd have to agree with them: no food.
If we could just get that stupid state law against pay toilets repealed, however, perhaps there could be attended bathrooms, and decent water fountains.