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 1/2-inch cubes.
Rinse and drain the canned chickpeas, then pat them thoroughly dry with a clean kitchen towel.
In a large mixing bowl, combine the tofu cubes, chickpeas, and broccoli florets.
Drizzle with olive oil and sprinkle with garlic powder, sea salt, and black pepper, tossing until evenly coated.
Spread the mixture in a single layer on the prepared baking sheet and roast for 25 to 30 minutes, tossing halfway through, until the tofu is golden and the broccoli is charred.
While the vegetables roast, warm the pre-cooked brown rice in a small saucepan or microwave.
Assemble the bowl by placing the rice at the base and topping it with the roasted tofu, chickpeas, and broccoli.
Drizzle the tamari over the bowl and finish by sprinkling with nutritional yeast and hemp seeds.