In a large mixing bowl, combine all wonton filling ingredients, excluding the wonton wrappers. Use a fork or chopsticks to blend the mixture thoroughly in a circular motion, ensuring everything is evenly mixed.
Place a wonton wrapper in the center of your palm and lightly wet its edges with water. Spoon a heaping teaspoon of the filling into the wrapper's center, then fold and seal by gathering all edges together. This type of wonton requires no intricate folding technique; simply ensure a secure seal.
To freeze the wontons, arrange them in a single layer on a baking sheet without overlapping. Freeze for a few hours, then transfer to an airtight plastic bag and store in the freezer for later use.
When your wontons are ready, start preparing the noodle soup.
In a medium to large pot suitable for two servings, combine the ginger slices, garlic cloves, green onions, dried shiitake mushroom, and chicken stock. Cover the pot, bring it to a boil, then reduce to a simmer over medium-low heat for 5 to 10 minutes to allow the flavors to meld.
Meanwhile, quarter the bok choy or your preferred vegetables for easy cooking and serving.
Remove all the solid ingredients from the broth, discarding everything except the shiitake mushroom. Slice the mushroom and set aside for serving in the soup.
Season the broth with soy sauce and fish sauce. If preferred, you may skip the fish sauce, but using both adds depth to the flavor.
If you're using dried or fresh noodles with a lot of starch, boil them separately in plain water, along with the bok choy, until tender.
For precooked noodles, place them directly into the soup for just a minute to heat. Then, remove them and place them in a serving bowl. Cook the bok choy in the soup for about 2 to 3 minutes, or until it reaches your desired tenderness, and place it atop the noodles. Add the sliced shiitake mushroom to the bowl as well.
Gently lower the wontons into the soup (about 5 wontons per serving) and simmer for 5 to 6 minutes, or until cooked through. Taste the broth and adjust seasoning with salt and pepper if needed.
Pour the hot broth with the cooked wontons over the prepared noodles and vegetables. Garnish with freshly chopped green onions, if desired, and enjoy your wonton noodle soup.