Preheat oven/toaster 400 degrees
Place tortilla on backing sheet with tin foil
Spray tin foil with non-stick cooking spray
Chop/ slice or prepare any optional ingredients
Pour 1/2 cup of Marinara sauce on tortilla
Spread the sauce evenly on the tortilla
Sprinkle a 1/2 teaspoon of dried oregano on sauce
Sprinkle a 1/3 cup of mozzarella cheese evenly on top of sauce
Add any optional ingredients
Place baking sheet in oven
Set timer for 10 mins or until cheese is melted
After timer goes off, take pizza out of the oven
Remove pizza from bakign pan using spatula