Start by pressing the tofu to remove excess moisture, then cut it into small cubes. Toss the cubed tofu in a bowl with corn starch until evenly coated.
In a large skillet or wok, heat 1 tablespoon of sesame oil over medium-high heat. Once hot, add the coated tofu and sauté until golden brown on all sides, approximately 8-10 minutes. Remove the tofu from the skillet and set aside.
In the same skillet, add the remaining tablespoon of sesame oil. Add the sliced red bell pepper, broccoli florets, and snap peas. Sauté for about 5 minutes or until the vegetables are tender yet crisp.
Stir in the minced garlic and ginger, cooking for an additional 1-2 minutes until fragrant.
Pour in the fresh orange juice, orange zest, and soy sauce. Bring the mixture to a simmer, and return the tofu to the skillet. Toss everything together for about 3-5 minutes, allowing the sauce to thicken slightly and coat the ingredients evenly.
Season with salt and pepper to taste. Finally, sprinkle sesame seeds over the stir fry.
Remove from heat and garnish with chopped green onions before serving.
Notes
Serve with extra sesame seeds and orange slices for garnish.