Kyra, also from Bradford, was halfway through eating her meal when she made the stomach-churning discovery.
She claims a member of staff from the pub chain said there had been a problem with the supplier.
Despite this, Kyra said the branch only refunded her the price of the burger and not for the rest of the meal and drinks.
The mum posted an image of the “disgusting” burger cut in half online last week.
She said: “A cheeky trip to The Turls Green Wetherspoon turned into me finding this halfway through my chicken burger.
“Told a member of staff who ran off saying ‘oh my god’, to then be told it could have been mould and it was a problem with the supplier.
“They only gave us a refund on the burger, not the rest of the meal and drinks we had.
“It’s not like I wanted anything else but I wasn’t given the option of any other food and was told the refund of about £6 will take 3-5 days to come back into my bank account.
“F*****g ridiculous and disgusting. I have major respect for waitresses and hospitality staff but a ‘sorry’ just doesn’t cut it.”
Kyra’s post has attracted almost 300 comments from disgusted social media users.
Sarah Korkmaz said: “Sorry but I would have been calling food hygiene and telling them to come down there straight away.”
Becky Atkinson wrote: “Yuck, I had food poisoning from there once.”
Paula Huddlestone replied: “My nephew was so ill after a chicken burger from there the other week.”
Georgie Gina said: “If botulism was a photo then this wins hands down. Crikey.”
Clare Alice Sunderland added: “I feel sick! Wtf.”
Established in 1979, JD Wetherspoon has over 900 pubs across the United Kingdom and Ireland.
Renowned for its cheap prices and ease of access for punters of all walks of life, Wetherspoon pubs have become a staple of British high streets.
Despite this, the company came under heavy scrutiny during the COVID-19 pandemic, after chairman and founder Tim Martin rejected the government’s advice and refused to close a single pub in mid-March of 2020.
The government then ordered the closure of all pubs from 21 March.
Martin initially refused to pay the company’s 43,000 employees for the period of closure until the furlough costs had been reimbursed by the Government.
However after public pressure, the pub group then backtracked and said in a statement on 25 March it would introduce a new scheme that would see staff paid 80% of their normal wages by the company.
Subsequently, the company posted its worst annual figure to date this year.
The pre-tax loss from July 2020-July 2021 was recently revealed to be £154.7m.