01 -
Preheat the oven to 400 degrees Fahrenheit.
02 -
Place the mushrooms in a microwave-safe bowl and microwave for 2 ½ to 3 minutes to soften them. Drain the mushrooms and set aside.
03 -
Lightly brush one side of each tortilla with the olive oil (optional) and place on a baking sheet, oiled side down.
04 -
Distribute half of the cheeses over half of each tortilla. Then layer the spinach, then the mushrooms, followed by the remaining cheese. Fold the other half of each tortilla over to seal.
05 -
Bake the tortillas for about 6 minutes, then flip each over and bake for another 6-7 minutes until the cheese is melted and the outside of the tortillas is golden brown.