Preheat your oven to 400°F (200°C). Prepare your baking sheet with parchment paper.

In a large mixing bowl, combine chopped broccoli, sliced carrots, and bell peppers, and mix well.

Whisk together balsamic vinegar, olive oil, honey or maple syrup, garlic powder, salt, and pepper in a separate bowl.

Pour the glaze over the vegetables and toss until evenly coated.

Spread the coated vegetables in a single layer on the baking sheet.

Roast the vegetables for 20-25 minutes, stirring halfway, until tender and caramelized.

Let the vegetables sit for a few minutes before serving to enhance the flavors.

Serve warm as a side dish with grilled meats or grain bowls.