Preheat your oven to 400°F (200°C) 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.
Chop the red bell pepper into bite-sized pieces and prepare the broccoli florets.
In a large bowl, combine the chickpeas, tofu cubes, broccoli, and bell pepper.
Drizzle with olive oil and sprinkle with sea salt, black pepper, and garlic powder, tossing until everything is evenly coated.
Spread the mixture in a single layer on the prepared baking sheet.
Roast for 25 minutes, tossing halfway through to ensure even browning.
Remove the sheet from the oven, sprinkle the nutritional yeast over the vegetables and tofu, and toss again to coat.
Return to the oven for another 5-7 minutes until the tofu is golden and the chickpeas are slightly crisp.
Remove from the oven and drizzle with fresh lemon juice before serving warm.