I make my own sauce (roma's, basil, garlic, onion, and some sweet & low or whatever you sweeten with *seed the tomato btw*) and blend it in a blender - you can add a little tomato paste to thicken if you want to.
Take tortilla and spread out 2 tbs of sauce (I like it a little saucy) then top with cheese of your choice and other toppings (some veggies, pepperoni, etc)
Place directly on rack or pizza stone (no oil) - in 450 degree oven (make sure if you place it on the rack it doesnt fall thru!).
Cook about 10 mins or until the tortilla becomes nice and crispy!
Its VERY VERY good - tastes just like a very thin hand tossed pizza from pizza hut - only better!
I usually eat 1 - sometimes 2 and feel absolutely no guilt or shame whatsoever with only having 14 carbs in 2 pizza's (i usually dont put alot of veggies, I usually only have cheese and chicken) so lots of protein - when you add in the protein of the tortilla, cheese, and chicken.
PS - dont overload it with cheese and toppings or you'll break the tortilla - I learned that the hard way
I average 2 tbs of sauce, about 1/4 cup of cheese (maybe a little more if no other toppings..depends on how I feel that day), 6 pepperoni, & about 1/4 of a bell pepper is about what you can put on them before they break. Play around with them and see what you come up with.