Bring a small pot of water to a boil and cook the soba noodles for 4-5 minutes until al dente, then drain and rinse under cold water to prevent sticking.
Use a spiralizer to turn the zucchini into noodles and thinly slice the red bell pepper and broccoli florets into bite-sized pieces.
Slice the chicken breast into thin strips and season evenly with sea salt and black pepper.
Heat the avocado oil in a large skillet over medium-high heat and sear the chicken strips for 3-4 minutes per side until golden brown and cooked through.
Remove the chicken from the skillet and set aside; in the same pan, add the minced garlic, grated ginger, bell pepper, and broccoli, sautéing for 3 minutes until tender-crisp.
Add the zucchini noodles, cooked soba noodles, coconut aminos, and toasted sesame oil to the skillet.
Return the chicken to the pan and toss all ingredients together for 1-2 minutes until the zucchini noodles are slightly softened and the dish is thoroughly heated.