Preheat the oven to 400°F (200°C).
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.
Lightly brush one side of each tortilla with the olive oil
(optional) and place on a baking sheet, oiled side
down.
Distribute about half of each of the cheeses over half of
each of the tortillas. Then layer the spinach,
mushrooms, and the rest of the cheeses, and fold the
other tortilla half over top, you can garnich by some mushrooms and cheese.
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 brown