Preheat the oven to 400 degrees F. In a large bowl, drizzle the brussels with olive oil. Add garlic powder, onion powder, and a dash of salt & pepper. Toss well to make sure everything is evenly coated.
Spread the seasoned brussels sprouts on a large baking sheet. Bake for approximately 25 minutes, or until fork tender.
Carefully, remove from the oven and top with Parmesan cheese. Broil for another 2-3 minutes, or until lightly browned. ENJOY!