Press the extra firm tofu for 15 minutes to remove excess moisture, then cut into 1-inch cubes.
In a small bowl, whisk together the tamari, toasted sesame oil, rice vinegar, garlic powder, and ground ginger to create the sauce.
Heat the avocado oil in a large non-stick skillet or wok over medium-high heat.
Add the tofu cubes to the skillet and sear for 8-10 minutes, turning occasionally, until all sides are golden brown and crispy.
Add the broccoli florets, sliced red bell pepper, and shelled edamame to the skillet with the tofu.
Stir-fry the vegetables for 5-6 minutes until the broccoli is tender-crisp and vibrant green.
Pour the prepared sauce over the tofu and vegetable mixture, tossing well to coat every piece evenly.
Cook for an additional 1-2 minutes until the sauce thickens and adheres to the ingredients.
Season with sea salt and black pepper, then garnish with sesame seeds before serving hot.