
Cook the noodles or spaghetti according to package directions until just tender. Drain well and set aside; reserve a small splash of noodle water in case you need to loosen the sauce later.


Season the sliced flank steak with salt and black pepper. Melt the butter in a large skillet or wok over medium-high heat, then sear the beef until browned but not fully cooked through. Transfer the beef to a plate.

Reduce the heat to medium. In the same pan, add the minced garlic and cook for 30 to 60 seconds, stirring constantly, until fragrant and lightly golden.

Add the green onions and stir-fry for about 1 minute, just until they soften and release their aroma.

Stir in the oyster sauce, soy sauce, and fish sauce. Let the sauce bubble for about 1 minute so the flavors blend and the garlic coats the pan.


Return the steak and any juices to the pan. Cook briefly until the beef is just done, then add the drained noodles and toss for 1 to 2 minutes until evenly coated and glossy. Garnish with extra green onions if desired and serve hot.
