Begin by pressing the tofu to remove excess moisture. Wrap it in a clean kitchen towel and set a weight on top. Let it sit for about 15-20 minutes.
After pressing, cut the tofu into bite-sized cubes and toss them in cornstarch until lightly coated.
Heat vegetable oil in a large skillet or wok over medium-high heat. Add the tofu cubes and cook until crispy and golden, about 5-7 minutes. Flip occasionally for even browning. Once done, remove the tofu from the skillet and set aside.
In the same skillet, add the bell pepper, broccoli, snap peas, green onions, garlic, and ginger. Stir-fry the vegetables for about 3-4 minutes, until they're vibrant and just tender.
In a small bowl, whisk together the soy sauce, maple syrup, rice vinegar, and sesame oil. Pour this sauce over the vegetables in the skillet and mix well.
Add the crispy tofu back into the skillet and toss everything together, ensuring the tofu and vegetables are well coated in the sauce. Let cook for an additional 2-3 minutes.
Once everything is heated through, remove from heat and sprinkle with sesame seeds.
Notes
Serve over a bed of cooked rice or noodles, garnished with extra green onions and sesame seeds for a pop of color.