難民行動-科爾切斯特的主任瑪麗亞-威爾比說，人們得到了 "不合適 "的食物。
負責埃塞克斯酒店的政府合同的Clearsprings Ready Homes公司尚未發表評論。內政部說這是一個 "短期 "計劃。
內政部說，有 "超過37,000名尋求庇護者住在旅館裡，每天花費英國納稅人560萬英鎊"，並使該系統 "面臨難以置信的壓力"。
Maria Wilby, director of Refugee Action - Colchester, said people were being given food that was "not appropriate".
Clearsprings Ready Homes, which runs a government contract for the Essex hotels, is yet to comment. The Home Office said it was a "short-term" plan.
"They are being served food that is absolutely not appropriate to their diet," said Ms Wilby.
"They're reaching to every possible Citizens Advice bureau, every possible food bank agency they can find in their area."
Andy Thornton, chief executive officer at the Michael Roberts Charitable Trust, which runs a food bank in Harlow, said six migrant families had purchased a daily low-cost package from them.
He said it does "not put too much pressure on our resources", adding: "Our heart goes out to them. Each one of them looks seriously worried for their families."
An Iranian man, who the BBC is only referring to by his nickname, Kiro, left a hotel four months ago and has now been granted asylum.
"This is not healthy food, it is not enough food and it is not good food," said the 38-year-old, who said he paid £2,000 so that he could cross the channel by small boat.
"You don't have anything to do, you are not allowed [a work] permit, anything, and it's been like, boring. You are getting stressed, you are getting depression," said Kiro, who is now in a shared house paid for by the Home Office.
The Home Office said there were "more than 37,000 asylum seekers in hotels, costing the UK taxpayer £5.6m a day" and putting the system "under incredible strain".