This is another recipe that I could see working with other ingredients of your choice–sweet potatoes, or thinly layered squash would work on top, as would your cheese of choice over the crust. You can substitute up to half whole wheat or white whole wheat flour for the all-purpose. If you don’t have a Smart Oven+, raise the temperature in your oven to 425 degrees.
For the crust:
For the onions:
For the rest: