You can never have enough...

[Lilith7]

Bloody well done Popeye!
Excellent move, getting others involved & I'm sure that's going to make all the difference in the long term; the more complaints, the more chance of getting changes.

I'm not sure if this is the kind of thing which Fair go do, but it may be worth contacting them for ideas on who else you could get involved who might be able to help. The food sounds absolutely dire & is clearly inedible for anyone of sound mind. Perhaps, next time there are lots of complaints take some of the food to the manager who claims she'd eat it herself & offer it to her to eat - with several witnesses.
Good luck with it.