1: Preheat the oven to 425 degrees F.
2: Trim the brussel sprouts and slice large ones in half.
3: In a large bowl, drizzle olive oil and melted butter over the brussel sprouts.
4: Add salt, garlic powder, and pepper, then toss gently until evenly distributed.
5: Add Panko and 1/3 cup of Parmesan cheese, then toss again to coat the sprouts.
6: Transfer to a large baking sheet, spreading the brussel sprouts so they aren't overlapping.
7: Bake for 18-23 minutes or until lightly browned and tender.
8: Remove from the oven and sprinkle the remaining 2 tablespoons of Parmesan cheese on the sprouts.
9: Serve immediately, optionally adding toasted Panko from the tray on top.