Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Press the extra firm tofu with a heavy object for 10 minutes to remove excess moisture, then cut into 1/2-inch cubes.
In a large mixing bowl, combine the cubed tofu, drained chickpeas, broccoli florets, and sliced red bell pepper.
Drizzle the olive oil over the mixture and sprinkle with sea salt, black pepper, and garlic powder, tossing until everything is well coated.
Spread the ingredients in a single layer on the prepared baking sheet, ensuring they aren't crowded so they roast rather than steam.
Roast for 25 to 30 minutes, tossing halfway through the cooking time, until the tofu is golden and the vegetables are tender.
Place the warm cooked quinoa into a serving bowl and top with the roasted tofu and vegetable mixture.
Garnish the bowl with nutritional yeast and hemp seeds, then finish with a bright squeeze of fresh lemon juice.