When we camp as the full family (3 vans 6-7people) we tend to take a camper oven. especially in the fall.
we have it hooked to a 20# BBQ bottle, which is way plenty for a weekends worth of lasagna & Apple Crisp
here's an image I have over at thesamba in the gallery
http://images.thesamba.com/vw/gallery/pix/527521.jpg
we've always talked of building it into a box, bot that'd make it heavier.. it's not too heavy now, but add a full 3/4" playwood box with handles etc.. 

my plans is for a homebuilt Syncro hightop with the oven for fall/winter camping useage.. 
don't use the oven for comfort heating, but why not throw in a pan of cinnomon buns or such.. 

it was about $40 at the local pick-n-pull from an old beat/retired RV camper..  in fact I usually see more than I can save.. and we have 3 of these mini propane powered ovens,  I even use it on the deck in the summer BBQ party season. corn bread and 4 more burners.. frankly they're a great little overlooked treasure. 

Dan in NY
VW Club of Central NY
www.vwccny.com 
Empire state VW camping Club
www.empirevwcamping.org 

Date:    Wed, 10 Nov 2010 16:08:44 -0800
From:    Michael Rasmussen <michael@JAMHOME.US>
Subject: Re: parking lot turducken ...as it were - ovens?
On Wed, Nov 10, 2010 at 06:34:09PM -0500, Peter Kraiker wrote:

Turducken takes an oven.  Who has an oven in their Westy and how did you do it?
I don't mean a microwave.