In a small bowl, whisk together the honey, Dijon mustard, olive oil, garlic powder, salt, and pepper until well combined.
Place the halved Brussels sprouts in a large mixing bowl, and pour the honey mustard mixture over them. Toss until the Brussels sprouts are evenly coated.
Spread the coated Brussels sprouts on a baking sheet in a single layer. If using, sprinkle the chopped pecans over the top.
Roast in the preheated oven for 20-25 minutes, or until the Brussels sprouts are tender and caramelized, stirring halfway through for even cooking.
Once done, remove from the oven and transfer to a serving dish. Garnish with fresh parsley before serving.
Notes
Add chopped pecans for extra crunch.
Keyword Brussels sprouts, honey mustard, vegetable side