Place top rack of oven on top level and line bottom rack with foil.
Preheat oven to 375 degrees.
Heat tortillas on high in microwave for about 30 seconds until softened or wrap in foil and place in preheated oven for 5 minutes.
Spray one side of each tortilla with the cooking spray and sprinkle with salt.
Drape tortillas with the sprayed side facing up over 2 rows of the top oven rack. Bake for 7 to 10 minutes until crispy and brown. I cook mine for 5 minutes so they are still a little soft and pliable.