Preheat Oven:
Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper.
Prepare the Glaze:
In a small bowl, whisk together honey, garlic, soy sauce, olive oil, balsamic vinegar, salt, and black pepper.
Coat the Mushrooms:
Place mushrooms in a large bowl. Pour glaze over them and toss until evenly coated.
Roast the Mushrooms:
Spread mushrooms in a single layer on the baking sheet. Roast for 18–20 minutes, stirring halfway through, until tender and caramelized.
Serve:
Transfer to a serving dish, spoon pan juices over mushrooms, and garnish with fresh parsley if desired.