Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Pat the extra firm tofu dry with a clean towel to remove excess moisture, then cut it into 1/2-inch cubes.
In a large mixing bowl, combine the cubed tofu, cooked chickpeas, broccoli florets, and sliced red bell pepper.
Drizzle the extra virgin olive oil over the mixture and sprinkle with garlic powder, onion powder, sea salt, and black pepper.
Toss everything thoroughly until the vegetables, tofu, and chickpeas are evenly coated with the oil and spices.
Spread the mixture in a single layer on the prepared baking sheet, ensuring enough space for the vegetables to roast rather than steam.
Roast in the oven for 25-30 minutes, tossing halfway through, until the tofu is golden and the broccoli has developed a slight char.
Remove from the oven and immediately sprinkle the nutritional yeast over the hot ingredients, tossing to coat.
Finish the bowl with a squeeze of fresh lemon juice to brighten the flavors before serving warm.