Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Press the extra firm tofu between paper towels to remove excess moisture, then cut into bite-sized cubes.
Place the tofu cubes, broccoli florets, and sliced red bell peppers onto the baking sheet.
Drizzle with olive oil and season with sea salt, black pepper, and garlic powder, tossing well to coat evenly.
Roast in the oven for 20 to 25 minutes, flipping halfway through, until the tofu is golden and the vegetables are tender.
While roasting, whisk together the tahini, lemon juice, and nutritional yeast in a small bowl, adding a teaspoon of water at a time until silky.
Steam the shelled edamame until bright green and tender, then place them in a serving bowl.
Top the edamame with the roasted tofu and vegetables, then finish by drizzling the creamy tahini dressing over the top.