Start by cutting the pressed tofu into bite-sized cubes. Toss the cubes in cornstarch until evenly coated. This will help them become crispy when cooked.
Heat 1 tablespoon of vegetable oil in a large non-stick skillet or wok over medium-high heat. Once hot, add the tofu cubes. Fry them until golden brown and crispy on all sides, about 8-10 minutes. Remove tofu from the skillet and set aside.
In the same skillet, add the remaining tablespoon of vegetable oil. Add the sliced red and green bell peppers, broccoli florets, and snap peas to the skillet. Stir-fry the vegetables for about 5-7 minutes until they are tender-crisp.
Add the minced garlic and grated ginger to the vegetables and stir-fry for an additional 1-2 minutes until fragrant.
Reduce the heat to medium, then return the crispy tofu to the skillet. Pour the teriyaki sauce over the tofu and vegetables, gently tossing everything together until well coated.
Cook for another 2-3 minutes, allowing the sauce to thicken slightly.
Remove from heat and sprinkle with chopped green onions and sesame seeds before serving.
Notes
Serve over steamed jasmine rice or quinoa, garnished with green onions and sesame seeds.