Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Drain the extra firm tofu and press it between paper towels for 10 minutes to remove moisture, then cut into 1-inch cubes.
In a large mixing bowl, combine the tofu cubes, rinsed chickpeas, broccoli florets, and chopped red bell pepper.
Drizzle with olive oil and sprinkle with garlic powder, sea salt, and black pepper, tossing well to ensure everything is evenly coated.
Spread the mixture onto the prepared baking sheet in a single layer and sprinkle the nutritional yeast over the top for a savory boost.
Roast in the oven for 25 to 30 minutes, tossing the ingredients halfway through, until the tofu is golden and the chickpeas are slightly crispy.
While roasting, whisk together the lemon juice and finely chopped fresh parsley in a small bowl to create a bright vinaigrette.
Remove the tray from the oven and immediately drizzle the vinaigrette over the roasted medley, tossing gently before serving warm.