Here are some resources on food from various religious traditions:
Faith and Food: http://www.interfaithcalendar.org/Foodsofreligions.htm
Syllabus of a course on food and religion
Jainism and food
Sikhism and food
Sikh religion is known for its tradition of Langar (the food kitchen) where food is served to all visitors of the Gurdwara (their place of worship). Here is a link to langar food recipes:
Jewish food is well known in America. We have all seen (and/or eaten) Challah, Bagels and Lox,
Matzah Ball Soup, Knishes, Blintzes etc.
For more information: http://www.jewfaq.org/food.htm
There are many sites decided to Jewish food recipes and other information including their dietary restrictions!
Recipes for various Hindu festivals
Korean temple food
The Sufi cookbook