Boil water in a medium pot and cook soba noodles for 4-5 minutes until al dente, then drain and rinse with cold water to stop the cooking process.
Slice the chicken breast into thin, bite-sized strips and season evenly with sea salt and black pepper.
Heat the toasted sesame oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken strips to the skillet and sear until they are golden brown and cooked through, approximately 5-6 minutes.
Remove the chicken from the pan and set aside; add the broccoli, sliced bell peppers, and snap peas to the same skillet.
Stir-fry the vegetables for 3-4 minutes until they are vibrant and crisp-tender.
Stir in the minced garlic and grated fresh ginger, cooking for about 30 seconds until highly fragrant.
Return the cooked chicken and noodles to the skillet with the vegetables.
In a small bowl, whisk together the tamari, rice vinegar, and honey, then pour the mixture over the stir-fry.
Toss all ingredients together for 1-2 minutes over the heat until the sauce coats everything evenly and the dish is heated through.