Food hygiene chiefs are investigating a new takeaway service over allegations it has been set up without permission.
All takeaways in the town have to be registered with the Environmental Health Department – and many require planning permission in order to operate.
Residents across Standish have been receiving a flyer for a new pizza and kebab business which doesn't give an address and offers a "delivery-only" service.
A Wigan councillor says he has been told it is operating from the kitchen of a house.
Coun Gareth Fairhurst says that his suspicions were further raised when he phoned the business to place an order, but insisted that he would pick up his meal, at which point the line went dead.
There was no reply when the Wigan Evening Post called the number on the menu, which has spelling mistakes, including "Coppul" and "Red Rocky Haigh."
Coun Fairhurst said: "I am concerned about hygiene and also the legitimacy of the business.
"If this business was based at an approved premises the council officers know exactly where to go to check that everything is as it should be, food raw materials are being kept refrigerated at the correct temperature or stored in the right surroundings. We have seen what happens on television when these things are not adhered to.
"It is also unfair that businesses that apply for planning permission have to abide by opening times agreed to by the council, and they pay business rates and pay for the premises' up keep."
Wigan Council's head of regulatory and community services Alan Blundell said: "We have become aware that an Italian fast food business is operating from an address on St Wilfrid's Road, but no one has been able to provide us with any actual address. Initial inquiries suggest there is a food business being run from commercial premises nearby.
"Inquiries are continuing and we will ensure that food hygiene standards are met by food producers."