Bake the tofu. Preheat the oven or air fryer to 400°F. Toss the tofu cubes with 1 tbsp tamari, then sprinkle with cornstarch and toss until coated. Spread out on a lined tray or in the air fryer basket. Cook for 20–25 minutes, flipping halfway, until golden and crisp.
Make the sauce. While the tofu cooks, whisk the tamari, toasted sesame oil, rice vinegar, maple syrup, ginger and chili flakes (if using) in a small bowl.
Boil water for the noodles. Bring a pot of water to a boil.
Stir fry the veggies. Heat the garlic-infused oil in a large skillet or wok over medium-high heat. Add the carrots, cabbage and bok choy stems and cook for 3–4 minutes, stirring often. Add the edamame and bok choy leaves and cook for 2–3 minutes more, until the leaves wilt and the edamame is hot.
Cook the soba. Cook the noodles for 4–5 minutes, until just tender. Drain and rinse under cold water to stop the cooking.
Toss everything together. Add the noodles, tofu and sauce to the skillet. Toss over low heat for 1 minute, until everything is coated and warmed through.
Serve. Divide between 2 bowls and top with scallion greens, sesame seeds, cilantro and a squeeze of lime.