Line 2 large rimmed baking sheets with foil. Spray with cooking spray. Sprinkle foil lined pans with small amount of salt.
Combine oil and salt in small bowl and stir.
Using a , lightly brush each tortilla with a small amount of the oil + salt mixture. Cut into 4 triangles.
Spread tortillas onto both pans in an even single layer. Do not overlap.
Place in oven and back 17 - 20 minutes. Rotate pans and flip chips halfway through baking time. Cool on wire baking racks. Repeat with additional tortillas.