Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Press the extra firm tofu with a heavy object for 10 minutes to remove excess moisture, then cut into 1/2-inch cubes.
In a large bowl, toss the tofu cubes and broccoli florets with avocado oil, sea salt, black pepper, and garlic powder until evenly coated.
Spread the tofu and broccoli in a single layer on the prepared baking sheet and roast for 20-25 minutes, flipping halfway through, until the tofu is golden and the broccoli is tender.
While the vegetables roast, prepare the dressing by whisking together the tahini, nutritional yeast, and lemon juice in a small bowl, adding a teaspoon of water at a time until it reaches a smooth, pourable consistency.
Assemble the bowl by placing the fresh baby spinach at the base and topping it with the cooked quinoa and shelled edamame.
Add the roasted tofu and broccoli to the bowl and drizzle the creamy tahini dressing over the top before serving.