I used to work in this sector until 2024. Most housing providers that I saw (that have the contracts between the Home Office and the Hotel) would run forums to gauge what food is requested and a menu is set and regularly reviewed.
However you could be catering for 20+ nationalities / ethnicities so it is a challenge to cater a menu of say 3 different main courses, that suit all dietary requirements as well as different tastes.
And then there is also the angle of if you can establish that a hotel cannot accommodate your food requirements then it is believed you'll be fast tracked for individual accommodation.
Have to add, I worked in safeguarding, so wasn't directly involved in hotel provision etc, but it came up all the time.