If making bok choy: Preheat oven to 400 degrees, and place bok choy on a baking sheet. Toss with avocado oil, salt, and pepper. Roast for 15 minutes, flipping halfway through. Set aside.
If making soft boiled eggs: Bring water to a boil in a saucepan and stir in vinegar and sea salt. Carefully add the eggs to the water, then simmer for 6 minutes for soft boiled eggs. Prepare an ice bath. Immediately transfer to an ice bath and cool for 5 minutes. Peel the eggs carefully so the eggs aren't damaged while peeling. Set aside.
Bring a large pot of water to a boil and cook your noodles according to package instructions. Drain and run under cold water to stop from cooking.
Heat 1 tbsp of avocado oil in a large skillet over medium heat and add shallots. Sauté until softened, about 3-4 minutes.
Add garlic and red pepper flakes, and stir for 1 minutes until fragrant.
Add the remaining 1 tbsp of avocado oil, tamari sauce, brown sugar, and gochujang, and stir until combined.
Add the noodles to the skillet over the sauce. Toss until the noodles are coated in the sauce and heated through.
Serve warm, garnished with green onions and sesame seeds. Top with bok choy and/or halved soft boiled eggs, if using.