Preheat oven - Preheat the oven to 400°F (200°C).
Prepare Brussels sprouts - Trim the bottom of the Brussels sprouts and cut in half. Place them in a large mixing bowl. - Make sure to trim off any tough or yellowed outer leaves.
Mix glaze - In a small mixing bowl, whisk together olive oil, miso paste, maple syrup, minced garlic, and black pepper.
Toss Brussels sprouts with glaze - Drizzle the glaze over the Brussels sprouts and toss until they are evenly coated. - Use your hands to ensure that every sprout is coated with the glaze.
Roast in the oven - Line a baking sheet with parchment paper and spread the Brussels sprouts in a single layer. Roast them in the preheated oven for 20-25 minutes, until tender and caramelized.
Serve - Remove the Brussels sprouts from the oven and let them cool for a few minutes. Transfer them to a serving plate and enjoy! - These Miso Maple Roasted Brussels Sprouts are the perfect healthy side dish for any meal.