Step 1

Preheat oven to 425°F. Line a large baking sheet with parchment paper.

Step 2

Peel the outer, yellow-ish leaves of the brussel sprouts off, trim the ends, then cut them in half.

Step 3

Place brussel sprouts in a large bowl, drizzle olive oil on top, and sprinkle with parmesan cheese, garlic powder, salt and pepper. Toss to coat evenly.

Step 4

Transfer the brussel sprouts to the prepared baking sheet, and roast in the preheated oven until golden brown, about 20-25 minutes, depending on their size. Shake the pan every few minutes for even roasting.

Step 5

Transfer the brussel sprouts to a serving dish and serve warm with crushed red pepper flakes, if desired.