01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large mixing bowl, toss the Brussels sprouts with olive oil, salt, and black pepper. Arrange them cut side down on the prepared baking sheet.
03 - Roast for 20 to 25 minutes, stirring once halfway through, until the sprouts are crisp and golden on the edges.
04 - While the sprouts roast, combine the pomegranate juice, balsamic vinegar, and honey in a small saucepan over medium heat. Simmer, stirring occasionally, until reduced by half and syrupy, about 8 to 10 minutes. Remove from heat.
05 - Transfer the roasted Brussels sprouts to a serving bowl. Drizzle with the warm pomegranate glaze and toss gently to coat.
06 - Top with the fresh pomegranate seeds, toasted nuts, and parsley if desired. Serve immediately while warm.