Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Drain and rinse the chickpeas, then pat them very dry with a clean kitchen towel.
Press the extra firm tofu to remove excess moisture and cut it into 1/2-inch cubes.
Place the chickpeas, tofu cubes, broccoli florets, and sliced bell pepper onto the baking sheet.
Drizzle with olive oil and sprinkle with garlic powder, sea salt, and black pepper, tossing to coat evenly.
Spread the ingredients in a single layer and roast for 25-30 minutes, tossing halfway through, until the tofu is golden and chickpeas are slightly crispy.
Remove from the oven and immediately drizzle with fresh lemon juice.
Sprinkle the nutritional yeast over the hot vegetables and tofu, tossing once more to create a savory coating before serving.