Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Drain and rinse the chickpeas, then pat them thoroughly dry with a clean kitchen towel to ensure they crisp up in the oven.
Press the extra firm tofu to remove excess moisture and cut it into uniform 1-inch cubes.
Place the dried chickpeas, tofu cubes, and broccoli florets onto the prepared baking sheet in a single layer.
Season the vegetables and tofu with sea salt, black pepper, and garlic powder, tossing gently to coat.
Roast in the oven for 25 to 30 minutes, tossing halfway through, until the tofu is golden and the chickpeas are crunchy.
While roasting, whisk together the tahini, lemon juice, and nutritional yeast in a small bowl until a smooth, thick dressing forms.
Assemble the bowl by layering the baby spinach and cooked quinoa at the bottom of a large serving dish.
Top the greens with the roasted chickpeas, tofu, and broccoli, then finish by drizzling the tahini sauce and sprinkling hemp hearts over the top.