Remove the tofu from its packaging and press 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 cornstarch, 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 and shelled edamame to the pan, stirring frequently for 5 minutes until the broccoli is bright green and tender-crisp.
In a small jar, whisk together the tamari, minced fresh ginger, and minced garlic.
Pour the sauce over the tofu and vegetables, tossing constantly for 1 minute until the glaze thickens and coats everything evenly.
Remove from heat and garnish with sesame seeds before serving.