Preheat the oven to 400 degrees F and line a baking sheet with parchment paper.
Sprinkle a thin, even layer of Parmesan cheese across the baking sheet.
Arrange the onion rings in a single layer over the cheese.
Lightly brush the onion rings with olive oil and season with salt, garlic powder, and paprika.
Bake for 20 minutes or until golden brown and crispy.
Let cool for 10 minutes before breaking apart into chips.
