Press the tofu for 15 minutes between paper towels to remove excess moisture, then cut into 1-inch cubes.
In a medium bowl, toss the tofu cubes with arrowroot powder, sea salt, and black pepper until each piece is evenly coated.
Heat 1 teaspoon of toasted sesame oil in a large non-stick skillet over medium-high heat.
Add the tofu to the skillet and sear for 8-10 minutes, turning occasionally, until all sides are golden and crispy.
Remove the crispy tofu from the pan and set aside on a plate.
Add the remaining 1 teaspoon of sesame oil to the skillet along with the broccoli, red bell pepper, and edamame.
Stir-fry the vegetables for 4-5 minutes until they are tender-crisp and bright in color.
Add the minced garlic and grated ginger to the skillet, stirring constantly for 1 minute until fragrant.
In a small jar, whisk together the tamari and rice vinegar, then pour the mixture into the skillet.
Return the tofu to the pan and toss everything together for 1-2 minutes until the sauce thickens slightly and coats the ingredients.
Transfer to a plate and garnish with sesame seeds before serving hot.