Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Press the extra firm tofu with a heavy object for 10 minutes to remove excess moisture, then cut into 1-inch cubes.
In a large mixing bowl, combine the tofu cubes, chickpeas, broccoli florets, and diced sweet potato.
Drizzle with olive oil and season with sea salt, black pepper, garlic powder, and smoked paprika, tossing until evenly coated.
Spread the mixture in a single layer on the prepared baking sheet and roast for 25 minutes, or until the tofu is golden and the sweet potatoes are tender.
While the vegetables roast, whisk together the tahini, lemon juice, and nutritional yeast in a small bowl, adding a teaspoon of water at a time until it reaches a drizzling consistency.
Assemble the bowl by placing the cooked quinoa in the center and topping it with the roasted tofu and vegetable mixture.
Garnish with hemp seeds and drizzle the creamy tahini dressing over the entire bowl before serving.