Students have been asked for their suggestions and the winning entry will be sold with the creator's name on the packaging.
Entry forms are available at the tills and should be posted in the comments box near student reception.
Suggestions can be for a new sandwich, wrap or baguette and the closing date is June 17th.
The winner will also receive a £10 voucher.
Restaurant staff are hoping to run more competitions in the future to allow students to have greater say in what's served up each day.