Preheat the oven to 180° C.
Slice the mushrooms and the mozzarella.
Pour some olive oil in a pan over medium heat and add the mushrooms until golden-brown. Salt and pepper to liking.
Place the tortillas in a baking tray and spread the tomato sauce. Add the mushrooms and mozzarella.
Place the tray in the oven and bake for about 10 to 12 minutes or until the tortillas are crispy.
Garnish with the baby arugula, the shaved parmesan and some olive oil.
Serve with lots and lots of love!
If you would like to try a non-vegetarian option then you can add some prosciutto on top of the tortilla pizzas a couple of minutes before they are ready to be taken out of the oven!