Preheat your oven to 400 degrees Fahrenheit.
Toss the potato rounds in olive oil until they’re well-coated. Lay them out in a single layer on a baking sheet lined with parchment paper.
Combine the Parmesan cheese, thyme, garlic powder, salt, and pepper in a small bowl. Mix 'em up good.
Sprinkle this mixture liberally over each potato round.
Slide that baking sheet into the oven and bake for about 20-25 minutes, or until they’re golden and crispy, turning halfway through.
Once those potatoes are golden, remove them from the oven and let them cool slightly. Transfer them to a serving platter and scatter a bit of fresh parsley on top.
