Preheat the oven to 425˚F and line a baking sheet with parchment paper.
Slice the cauliflower into 1/2″ thick steaks. Add them into a large mixing bowl.
Drizzle with olive oil. Toss to coat.
In a small bowl, combine the garlic powder, salt, paprika, and pepper.
Sprinkle the seasoning onto the cauliflower and toss to evenly coat.
Add parmesan cheese and toss well to coat the cauliflower.
Add the cauliflower to the baking sheet in one single layer, ensuring that it’s not too crowded.
Bake for about 15-20 minutes, until the cauliflower reaches the desired crispiness.