A competition where people devise recipes which use only local produce and enter them into 4 categories: spring, summer, autumn and winter. The best recipes are included in a book.
Perhaps people don't really know which foods are produced locally or which foods are seasonal. This could be a fun way of getting people to research this and adapt their favourite recipes or invent new ones which use only local food. The concept is a competition where people will submit these recipes into one of 4 categories - the 4 seasons. The best recipes will be chosen to be included in a recipe book with each of the 4 seasons as a chapter. The book itself could be an ebook and/or a printed book and could feature local producers, telling their stories and showing photographs of their farms.
Maybe the winners could win a month's supply of local produce as well as having their recipes used.
There could also be a schools section which would encourage children to be involved and learn about food.
A whole event about local food could be devised around the book launch.