Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Toss the cubed sweet potato, chickpeas, and cubed tempeh in a bowl with olive oil, smoked paprika, half of the garlic powder, sea salt, and black pepper.
Spread the mixture in a single layer on the baking sheet and roast for 20 to 25 minutes until the potatoes are tender and the chickpeas are slightly crisp.
While the vegetables roast, steam the broccoli florets in a steamer basket over boiling water for 4 to 5 minutes until bright green and tender-crisp.
In a small mixing bowl, whisk together the nutritional yeast, lemon juice, the remaining garlic powder, and 2 tablespoons of warm water until a smooth, creamy dressing forms.
Assemble the bowl by placing the steamed broccoli at the base and topping it with the roasted sweet potato, chickpeas, and tempeh.
Drizzle the creamy nutritional yeast dressing over the bowl and finish with a sprinkle of hemp hearts for added texture.