Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Press the firm tofu with a clean kitchen towel to remove excess moisture, then cut into half-inch cubes.
In a large mixing bowl, combine the tofu cubes, chickpeas, broccoli florets, and sliced red bell pepper.
Drizzle with olive oil and sprinkle with sea salt, black pepper, and garlic powder, tossing well to ensure everything is evenly coated.
Spread the mixture in a single layer on the prepared baking sheet and roast for 20-25 minutes, tossing halfway through, until the tofu is golden and vegetables are tender.
While the vegetables roast, whisk together the Greek yogurt, lemon juice, and fresh dill in a small bowl until the sauce is smooth and pourable.
Assemble the bowl by placing the cooked quinoa at the base, topping with the roasted tofu and vegetable mixture, drizzling generously with the yogurt sauce, and finishing with a sprinkle of hemp hearts.