Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Press the extra firm tofu with a clean kitchen towel or paper towels to remove as much moisture as possible, then cut into 1/2-inch cubes.
Rinse and drain the chickpeas, then pat them completely dry with a towel to ensure they become crispy in the oven.
In a large mixing bowl, whisk together the olive oil, lemon juice, garlic powder, sea salt, and black pepper.
Add the tofu cubes, dried chickpeas, and broccoli florets to the bowl, tossing gently until every piece is evenly coated in the oil and spice mixture.
Sprinkle the nutritional yeast over the ingredients and toss again until the vegetables and protein are well-crusted.
Spread the mixture in a single layer on the prepared baking sheet, ensuring there is space between pieces for even roasting.
Roast for 25 to 30 minutes, tossing the ingredients halfway through, until the tofu is golden and the chickpeas are slightly crispy.
Transfer the roasted mixture to a serving bowl and garnish with the hemp seeds before serving warm.