Preheat your oven to 350.

Cut the sweet potatoes into very thin slices, and arrange them on a cookie sheet in a single layer.

Drizzle with olive oil or spritz with non-stick spray.

Sprinkle with salt or cinnamon sugar or pumpkin pie spice.

Bake for 10 minutes, then flip and bake another minute or two until they are a light golden brown and slightly crispy.

Serve warm or cold.