In a deep pan or a wok heat vegetable oil over medium heat, then add onion, garlic and cook for 1 minute, then add pork, a pinch of salt and stir fry until pork is cooked for about 5 minutes.
Add carrots, green beans and cabbage, soy sauce and shrimp, stir to combine and cook on medium-high heat for 7 minutes stirring occasionally until the vegetables are tender but still slightly crisp.
While your vegetables are cooking, prepare the noodles according to package directions. They take 3-4 minutes on average.
Drain the noodles and add to the pan, toss everything together, taste and add an additional tablespoon of soy sauce and a teaspoon of sesame oil, sprinkle with sliced green onion.
Serve with lime quarters or calamansi.