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 cornstarch, sea salt, and black pepper until each piece is evenly coated.
In a small jar or bowl, whisk together the tamari, rice vinegar, honey, grated fresh ginger, and minced garlic to create the stir-fry sauce.
Heat the sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the tofu to the skillet and sear until golden brown and crispy on all sides, which should take approximately 8-10 minutes.
Add the broccoli florets and shelled edamame to the skillet with two tablespoons of water; cover with a lid to steam for 3 minutes until the broccoli is bright green.
Remove the lid, pour the prepared sauce over the tofu and vegetables, and toss constantly for 1-2 minutes until the glaze thickens and coats everything.
Transfer to a plate and garnish with sesame seeds before serving hot.