Preheat oven to 400F and line a baking sheet with parchment paper. Spray the paper with cooking spray.
Cut the corn tortillas into ¼ inch strips, spread out evenly over the baking sheet, and then spray with cooking spray. I used avocado oil spray.
8 corn tortillas, cooking spray
Bake for 10 minutes, shake to mix them up, and bake an additional 5 minutes. Check on the tortilla strips often. Depending on the climate, oven, etc., they may cook faster or slower, and you don't want to burn them! Bake until your desired crispy level is achieved! If you go over 15 minutes total cook time, I would check on them every minute and keep a close eye, so they don't burn.