Preheat oven to 400°F and line a baking sheet with parchment paper.
Press the tofu for 15 minutes to remove excess moisture, then cut into 1-inch cubes.
In a large bowl, toss the tofu cubes, broccoli florets, and sliced bell peppers with olive oil, garlic powder, sea salt, and black pepper.
Sprinkle the nutritional yeast over the mixture and toss again until evenly coated.
Spread the tofu and vegetables in a single layer on the prepared baking sheet.
Roast for 20-25 minutes, flipping halfway through, until the tofu is golden and the vegetables are tender.
While roasting, steam the edamame until bright green and tender.
Assemble the bowl by placing the cooked quinoa at the base and topping it with the roasted tofu, vegetables, and edamame.
Drizzle with fresh lemon juice before serving.