I allready talked with Marcus Moeller about exisiting "cooking
communities".
They usually cook vegan/vegetarian, are mobile (if no kitchen is
availble), use regional and seasonal food, only use non-genetically
modified food but use organic food. I know for example, that the
Freiburger Maulwürfe cooked during the whole klimacamp [1] in Chur,
Switzerland last year.
Here a list of kitchens I met:
* Fläming Kitchen von BadBelzig [2]
* Freiburger Maulwürfe [3]
* Rampenplan von Netherlands [5]
* Fahrende Gerüchte Küche Berlin [4]
I personally know Wam Kat<mir@wamkat.de> from Fläming Kitchen. That
would be a person to contact an get an cooking offer/bid.
A very small group (3-4 people including me) is forming in
Liechtenstein such a cooking collective but we are too unexperienced
to make a bid for the DebConf 13. But I can imagine that we support
one of the kitchen that have the experience to cook for 100-300 people.