Press the extra firm tofu for 15 minutes to remove excess moisture, then cut into 1-inch cubes.
Toss the tofu cubes with arrowroot powder, sea salt, and black pepper until lightly and evenly coated.
Heat the sesame oil in a large non-stick skillet over medium-high heat.
Add the tofu to the skillet and sear until golden brown and crispy on all sides, approximately 8-10 minutes.
Remove the crispy tofu from the pan and set it aside on a plate.
In the same skillet, add the broccoli florets, sliced red bell peppers, and edamame, sautéing for 5 minutes until tender-crisp.
Whisk together the tamari, rice vinegar, minced ginger, and minced garlic in a small bowl to create the glaze.
Return the tofu to the pan and pour the sauce over the mixture, tossing for 1-2 minutes until the glaze has thickened and coated everything.
Garnish with sesame seeds and serve immediately while hot.