You know, I just use any normal recipe and have learned to watch cooking times and ingredients as I go. I know that's not much help but honestly if I had some recipes I already loved, I would probably try tweaking them.
Here's one site with some ideas to try:
http://allrecipes.com/HowTo/High-Alt...ng/Detail.aspx
And another:
http://www.suite101.com/article.cfm/...corating/31903