01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, toss Brussels sprouts with olive oil, balsamic vinegar, honey, salt, and pepper until evenly coated.
03 - Spread Brussels sprouts cut side down on the prepared baking sheet in a single layer.
04 - Roast for 20–25 minutes, tossing once halfway through, until sprouts are golden and caramelized.
05 - Transfer to a serving dish. Sprinkle with toasted nuts or Parmesan cheese if desired, and serve immediately.