Cook the soba noodles in boiling water according to package directions, then drain and set aside.
In a large skillet over medium-high heat, cook the ground turkey until browned, breaking it up with a spatula as it cooks.
Add the minced garlic and grated ginger to the skillet, sautéing for 1 minute until fragrant.
Stir in the chopped baby bok choy and cook for 2-3 minutes until the leaves are wilted and the stems are tender.
In a small bowl, whisk together the tahini, tamari, sesame oil, chili garlic sauce, rice vinegar, sea salt, and black pepper to create the sauce.
Add the cooked noodles and the prepared sauce to the skillet, tossing everything together until well-coated and heated through.
Garnish with sliced green onions and serve immediately.