Place the dry soy chunks in a bowl and cover with hot water for 10 minutes until softened, then drain and squeeze out all excess moisture.
Drain the konjac noodles and rinse them thoroughly under cold running water for 2 minutes to remove their natural scent.
Parboil the rinsed noodles in a pot of boiling water for 2 minutes, then drain and set aside.
In a small bowl, whisk together the tamari, maple syrup, toasted sesame oil, and red pepper flakes to create the glaze.
Heat the avocado oil in a large skillet or wok over medium-high heat.
Add the sliced shiitake mushrooms to the skillet and sauté for 3-4 minutes until they are browned and tender.
Stir in the rehydrated soy chunks, minced garlic, and grated ginger, cooking for another 5 minutes until the soy chunks develop a golden crust.
Add the baby bok choy and prepared konjac noodles to the pan, tossing frequently until the greens are just wilted.
Pour the tamari glaze over the stir-fry and cook for 2 minutes, stirring constantly until the noodles are glossy and the sauce has thickened slightly.
Season with sea salt and black pepper, then serve immediately topped with sliced green onions and sesame seeds.