Cook the soba noodles according to package instructions, adding the baby bok choy to the boiling water for the final 60 seconds of cooking.
Drain the noodles and bok choy thoroughly and set them aside.
In a large skillet over medium-high heat, sauté the ground turkey until fully browned and crumbled.
Stir in the minced garlic, minced ginger, sea salt, and black pepper, cooking for 1 minute until fragrant.
In a small bowl, whisk together the tahini, tamari, rice vinegar, chili oil, and ground Sichuan peppercorns until smooth.
Add the cooked noodles and bok choy to the skillet with the turkey.
Pour the tahini sauce over the mixture and toss well to ensure everything is evenly coated and heated through.
Serve the noodles in a bowl garnished with fresh sliced scallions.