Cook the noodles in a large saucepan per packet directions. Scoop out ~½ cup cooking water. Strain noodles and set aside.
Melt butter in the same saucepan over medium heat. Add garlic and cook, stirring until soft. Add oyster sauce, fish sauce, Maggi seasoning and ¼ cup cooking water. Stir to combine.
Add cooked noodles, parmesan and green onion. Toss until the noodles are all coated, and the sauce is not pooled in the bottom of the saucepan. Add more cooking water 1 tablespoon at the time, if needed to loosen the noodles.
Serve immediately!
Serving suggestion: fried egg and broccolini cooked with the noodles, tossed with Asian Sesame Dressing.
Notes
Broccolini takes about 3 minutes, so put it into the water before/after/with the noodles depending on the noodle cooking time.