Preheat the oven to 400°F and place a wire rack over a large, rimmed baking tray.

Wash the sweet potatoes and cut them into 1/2 inch discs.

Place the sweet potato discs into a large mixing bowl.

Sprinkle the vegetable oil, Cajun seasoning, garlic powder, salt, and pepper evenly over the potato discs.

Using clean hands, mix the potato discs thoroughly until each disc is completely coated with the seasoning mix.

Place the discs onto the wire-racked baking tray, ensuring they do not overlap.

Bake for 20-30 minutes, turning halfway through baking time, until browned slightly on the outside and the centers are soft.