In a wok or a deep pan over medium heat, dry roast the mushroom until fragrant, about 1 minutes.
Add one Taiwanese Sausage patty (or a chopped up Taiwanese Sausage) to the wok, breaking it up into small pieces as it cooks until the sausage pieces releases fat and is charred on the edges.
Add 2tbsp of Madame Chu ginger garlic paste, onion, and green onions, mixing and cooking everything until the rawness of the alliums turn into sweetness.
Add the chopped cabbage, salt, white pepper, oyster sauce to the wok, continue to mix and cook for one minute.
Add 2 1/2 cups of water to the wok and bring to a boil on high heat. Add the bundle of rice noodle and shredded carrots to the boiling stock, reduce the heat to medium then put a lid on to create steam in the wok. Opening the lid and mixing the noodle occasionally, making sure the noodles are softened and absorbing all the liquid. About 6 minutes.
Taste the noodles, adding another 1/2C of water and put the lid back on if the noodles feel too dry or hard. Add additional salt or white pepper to taste.