Rodents served with honey and fish sauce are among the Roman delicacies that could be served up at a celebration of Lincoln's heritage.
Lincoln Business Improvement Group has declared May 17 Lindum Colonia Day and wants local restaurants and cafés to try some 2,000-year- old recipes.
A new heritage trail around Lincoln is also being devised to encourage people to follow in the footsteps of Roman legionaries and discover more about the influence of Rome.
The map will be available in printed form and as a mobile phone app for use on the go. Lincoln BIG and Visit Lincoln want local businesses and organisations to get involved. Emma Tatlow, from Visit Lincoln, said: "Restaurants and cafés could put on a Roman-themed menu and colleges and schools could run workshops on the topic.
"Lindum Colonia Day is all about making the city's Roman heritage more visible.
"There will be free guided walking tours around the sites and we are hoping to have some of the normally closed areas open for the public to view, such as the Posterngate underneath the Royal Bank of Scotland.
"The Roman trail features fresh information about the city's traditional heritage sites as well as new ways of interacting with the history."
Italian chef Ivano de Serio, from the Old Bakery in Burton Road, Lincoln, said: "Of course, I'm up for trying out some of the Roman recipes, I am Italian after all.
"Some of the Roman food wasn't very good to eat.
"A lot of it was fermented and I don't think modern stomachs could take it.
"They did do lots of roasting in their banquets like pigs and pheasants and stuffed them with fruit. Lincoln was a big Roman settlement, so it's definitely a good idea to celebrate its past."
For more information about Lindum Colonia Day e-mail Rachel Hanson on rachel. firstname.lastname@example.org