Press the tofu for 15 minutes to remove excess moisture, then cut into 1-inch cubes and season with sea salt and black pepper.
In a small bowl, whisk together the tamari, rice vinegar, minced ginger, and minced garlic to create the stir-fry sauce.
Heat the toasted sesame oil in a large non-stick skillet over medium-high heat.
Add the tofu cubes to the pan and sear until golden brown and crispy on all sides, which should take about 8 to 10 minutes.
Toss in the broccoli florets, sliced bell peppers, and shelled edamame, sautéing for another 5 minutes until the vegetables are tender-crisp.
Pour the prepared sauce over the tofu and vegetables, stirring constantly until the glaze thickens and coats all ingredients evenly.
Remove the skillet from the heat and garnish the dish with sesame seeds before serving.