Drain the tofu and wrap it in a clean kitchen towel or paper towels; place a heavy skillet on top for 15 minutes to press out excess moisture.
While the tofu presses, slice the red bell pepper into thin strips and mince the fresh ginger and garlic.
Cut the pressed tofu into 1-inch cubes and season them evenly with sea salt and black pepper.
In a small bowl, whisk together the coconut aminos, rice vinegar, and red pepper flakes to create the stir-fry sauce.
Heat the toasted sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the tofu cubes to the skillet and sear for 8-10 minutes, turning occasionally until all sides are golden brown and crispy.
Remove the tofu from the pan and set aside; add the bell pepper, broccoli, and edamame to the same skillet with a splash of water.
Sauté the vegetables for 4-5 minutes until tender-crisp, then stir in the minced ginger and garlic for 30 seconds until fragrant.
Return the tofu to the pan and pour the sauce over the mixture, tossing everything together for 1-2 minutes until the sauce thickens slightly and coats the ingredients.
Serve immediately in a large bowl for a high-protein, plant-forward meal.