Preheat your oven to 400°F (200°C).

Remove any tough outer leaves from the cabbage and cut it into wedges.

In a mixing bowl, combine the olive oil, garlic powder, onion powder, salt, and pepper.

Drizzle the seasoning mixture over the cabbage wedges and toss gently until well coated.

Line a baking sheet with parchment paper and place the cabbage wedges in a single layer.

Put the baking sheet in the oven and roast the cabbage for about 30 minutes.

If using, drizzle the balsamic vinegar over the cabbage during the last 5 minutes of roasting.

Remove the cabbage from the oven and let it cool slightly before serving.