The sun oven I have is the older, slightly smaller version called the Global sun Oven. They sell for less now but are not as nicely put together as the American sun oven. The American also comes with the pots and racks so the price difference isn't as big as it looks. (right now $177 for just the Global or $319 for the American and pots)
I was looking for recipes when I first got mine as the cook book was missing. What I have found is that most recipes are the same except for adjusting to different cooking conditions and temperatures. Also soups and stews don't require additional water because the oven is sealed. Put in the meat and vegies and there will be plenty of liquid at the end.
One of my favorite things to do is toss a hand full of frozen roll size dough balls in a pan when I get up. By the time the sun is up the dough is ready and a bit later we have fresh bread for breakfast.