In the 80's my mom used to make us tortilla pizzas. She would put milk on the tortilla then all the pizza stuff in the oven for a few. Turns out good and not costly! And so from the 80's!
When I dated a lady with 5 kids I told her how to make them it blew her kids minds at the time. Her kids watched me make them so they learned how to make them. To them was like going to a concert like thing. A thing of the 80's.
https://www.allrecipes.com/recipe/258013/easy-tortilla-pizza