Preheat the oven to 425°F (220°C).
Wash and trim the Brussels sprouts, cutting them in half. Drain and rinse the chickpeas.
Cut the tempeh into bite-sized cubes.
In a large bowl, toss the Brussels sprouts, tempeh, and chickpeas with olive oil, salt, and pepper.
Spread the mixture on a baking sheet in a single layer. Roast in the preheated oven for 20-25 minutes until the Brussels sprouts are crispy and the tempeh is browned, stirring halfway through.
While roasting, in a small saucepan over medium heat, sauté the minced garlic for about 1 minute until fragrant. Stir in the honey and balsamic vinegar, allowing the glaze to simmer for 2-3 minutes until slightly thickened.
Remove the roasted vegetables and tempeh from the oven and drizzle the warm glaze over them. Toss gently to coat evenly.
Serve immediately and enjoy your balanced, nutrient-packed meal.