
Soak the dried rice noodles in warm water according to the package directions until pliable but not mushy. Drain well and set aside so they are ready to go before you start stir-frying.
Heat a wok or large skillet over high heat until very hot. Add 1 tbsp oil, pour in the eggs, and quickly scramble just until set. Transfer the eggs to a plate.
Add another 1 tbsp oil to the hot wok. Add the shrimp and stir-fry for 1 to 2 minutes, until just cooked through and lightly browned at the edges. Remove and set aside with the eggs.
Add the remaining 2 tbsp oil. Stir-fry the roast pork for about 20 seconds, then add the onion, garlic, and bell pepper. Cook over high heat for about 1 minute, stirring constantly, until fragrant and slightly softened.
Add the ham and cook for 30 seconds. Add the drained rice noodles, then toss well to combine with the meat and vegetables. Return the eggs and shrimp to the wok and stir-fry for 3 to 5 minutes, until the noodles are heated through.
Pour in the Shaoxing wine, then add the sugar, oyster sauce, soy sauce, and sesame oil. Toss everything together until the noodles are evenly coated and seasoned. If the noodles stick, keep the heat high and use a spatula to loosen them quickly.
Add the scallion and stir-fry just until wilted. Serve immediately, with chili oil or hot sauce on the side if you like extra heat.