Press the firm tofu between paper towels for 15 minutes to remove excess moisture, then cut into 1-inch cubes.
Heat a large ceramic or non-stick skillet over medium-high heat and add the toasted sesame oil.
Place the tofu cubes in the skillet and sear until golden and crispy on all sides, roughly 8-10 minutes.
Add the broccoli florets, sliced bell peppers, and edamame to the pan with the tofu.
Sauté the mixture for 5-6 minutes until the vegetables are tender-crisp and the colors are vibrant.
In a small bowl, whisk together the tamari, freshly grated ginger, and minced garlic.
Pour the sauce over the stir-fry, tossing everything together to ensure an even coating.
Continue cooking for 2 minutes until the glaze is glossy and has adhered to the tofu.
Sprinkle with sea salt, black pepper, and sesame seeds before serving hot.