Drain the tofu and press it between paper towels for 15 minutes to remove excess moisture, then cut into 1-inch cubes.
In a medium bowl, toss the tofu cubes with arrowroot starch, 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 in a single layer and sear for 3-4 minutes per side until golden brown and crispy.
Add the broccoli florets, sliced red bell pepper, and shelled edamame to the skillet, stir-frying for 5 minutes until the vegetables are tender-crisp.
In a small jar, whisk together the tamari, grated fresh ginger, and minced garlic.
Pour the sauce over the tofu and vegetables, tossing constantly for 1-2 minutes until the glaze thickens and coats the ingredients.
Remove from heat and garnish with sesame seeds before serving.