Put a comal--or cast iron skillet--on the stove top and turn the burner on medium high to high. Turn on the oven broiler.
Take a bit of cold sourdough out of your sourdough bin--if you have one like me, which I use for bread, pizza and other things--, roll it into a ball and drop it in a bag of flour, pull it out and roll it flat with a rolling pin (gasp--it's ok). Top it with sauce then toss it on the preheated--about 550F--comal and let it cook like a tortilla until it bubbles up (don't flip it). Then put on the cheeses and throw it under the broiler and cook for a few minutes until browned.
The last one I made came out really flavorful -- pretty much like how it comes out on a pizza stone. It's quick and saves a lot of energy as well.
Try it and let me know what you think!
(Normally I take a ball from my sourdough bin and let it sit on the counter for a couple hours, hand stretch it, put it on a peel and top it, and throw it into an oven with a pizza stone at 550F that has been preheated for about 1/2 hour.)
Regarding my sourdough bin: I make up enough dough in it for an entire week of bread, pizza etc. I just pinch off what I need when I need it. The dough tastes more sour & flavorful the longer it sits in the fridge. My dough usually doesn't last more than 7 days in the fridge before it is used.
Well, both ideas actually. ;-)
What hydration is your dough at?
80% and I used 100% freshly ground organic whole wheat. I'm sure it'd be even better with white, but the wheat was very good as well :)