I wrote up a post here showing how to use the “Create Project from Template” from Zapier using the native API and Zapier webhook functionality:
While I too would love to see it native, Zapier manages the Asana integration (not Asana) and it’s already far behind and running into other issues, so I don’t foresee them adding new functionality to it anytime soon.
Please go and upvote this thread so we can get to Asana’s attention and hopefully change this: