Prepare the Brussels Sprouts:
Preheat your oven to 400°F (200°C).
Trim the ends of the Brussels sprouts and remove any yellow or damaged outer leaves. Slice the sprouts in half lengthwise for even roasting.
Season the Brussels Sprouts:
In a large mixing bowl, toss the halved Brussels sprouts with olive oil, garlic powder (if using), salt, and pepper. Ensure they are evenly coated.
Arrange on the Baking Sheet:
Line a baking sheet with parchment paper (optional for easier cleanup). Spread the Brussels sprouts out in a single layer, cut side down. This helps them caramelize beautifully.
Roast the Brussels Sprouts:
Roast in the preheated oven for 20–25 minutes, flipping halfway through. The Brussels sprouts are ready when they are golden brown and slightly crispy on the edges.
Serve:
Transfer the roasted Brussels sprouts to a serving dish. Drizzle with balsamic glaze if desired, or serve as-is for a simple, savory side.