Drain and press the firm tofu for 15 minutes to remove excess moisture, then cut into 1-inch cubes.
In a small bowl, whisk together the tamari, grated ginger, and minced garlic to create the stir-fry sauce.
Toss the tofu cubes with arrowroot powder, sea salt, and black pepper until evenly coated.
Heat the toasted sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the tofu to the skillet and sear for 3-4 minutes per side until the edges are golden and crispy.
Add the broccoli florets, sliced red bell pepper, and edamame to the skillet, sautéing for 5 minutes until tender-crisp.
Pour the tamari sauce over the tofu and vegetables, tossing constantly for 1 minute until the sauce thickens and coats everything.
Remove from heat and garnish with sesame seeds before serving.