Preheat oven to 400°F and line a large baking sheet with parchment paper.

In a large bowl, toss the shredded Brussels sprouts with olive oil, garlic powder, salt, and pepper until evenly coated.

Spread the Brussels sprouts in a single layer on the prepared baking sheet, making sure they're not overcrowded.

Roast for 20-25 minutes, stirring once halfway through, until the edges are crispy and golden brown.

Remove from oven, sprinkle with Parmesan cheese, and serve immediately.