Press the extra firm tofu for at least 15 minutes to remove excess moisture, then cut into 1-inch cubes.
In a small bowl, whisk together the tamari, rice vinegar, minced fresh ginger, minced garlic, and sriracha to create the stir-fry sauce.
Heat the toasted sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the tofu cubes to the hot skillet, seasoning with sea salt and black pepper, and sear until golden brown and crispy on all sides.
Add the broccoli florets and shelled edamame to the skillet with a splash of water, then cover with a lid for 2 minutes to steam the vegetables until tender-crisp.
Remove the lid and pour the prepared sauce over the tofu and vegetables.
Toss everything together for 1-2 minutes until the sauce thickens slightly and coats every piece evenly.
Transfer to a plate and garnish with sesame seeds before serving.