This year on Great British Menu the nation's top chefs are competing for the ultimate prize - the chance to cook at a banquet held at the Palace of Westminster, in celebration of everyday great Britons honoured by the Queen. In the year of the Queen's 90th birthday, the chefs have been challenged to showcase contemporary cuisine and demonstrate the transformation in British food during her historic reign. The 24 chefs competing have travelled the country meeting great Britons who have been recognised for their tireless and selfless work for charities, for their local communities or their country.