Preheat your oven to 400°F (200°C).
Wash the Brussels sprouts under cold water, pat them dry, and trim the stems.
If the Brussels sprouts are large, cut them in half lengthwise.
Place the prepared Brussels sprouts in a mixing bowl.
Drizzle olive oil over the Brussels sprouts, ensuring they are lightly coated.
Season with salt and pepper, and add any optional seasonings like garlic powder or balsamic glaze.
Toss the Brussels sprouts until they are evenly coated with the oil and seasonings.
Transfer the Brussels sprouts to a baking sheet lined with parchment paper or aluminum foil.
Spread them out in a single layer to ensure even cooking.
Place the baking sheet in the preheated oven and roast for 25-30 minutes.
Halfway through cooking, flip the Brussels sprouts for even browning.
Once they are golden brown and tender, remove them from the oven.
Transfer the roasted Brussels sprouts to a serving dish.
Garnish with grated Parmesan cheese or additional seasonings if desired.
Serve immediately and enjoy your delicious roasted Brussels sprouts!