Press the extra firm tofu for 15 minutes to remove excess moisture, then cut it into 1-inch cubes.
In a small bowl, whisk together the tamari, rice vinegar, maple syrup, and red pepper flakes to create the glaze.
Heat the toasted sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the tofu cubes to the pan and sear until golden brown and crispy on all sides, approximately 8 to 10 minutes.
Add the broccoli florets, sliced red bell pepper, and shelled edamame to the pan, sautéing for 5 minutes until the vegetables are tender-crisp.
Stir in the grated fresh ginger and minced garlic, cooking for 1 minute until highly fragrant.
Pour the prepared glaze over the tofu and vegetables, tossing well to coat everything evenly.
Allow the sauce to simmer and thicken for 1 to 2 minutes, then garnish with sesame seeds and sea salt before serving.