Prepare the noodles. Soak the pancit bihon noodles in water for about 10 minutes. Drain well and set aside.
Prepare the seasoning. Dissolve the Mama Sita’s Pancit Bihon Mix in 2 cups of water. Set aside.
Brown the pork. Heat the cooking oil in a large wok or deep skillet over medium-high heat. Add the sliced pork and cook until browned and cooked through.
Sauté the aromatics. Add the onion and garlic. Cook until the onion begins to soften and the garlic is fragrant.
Add the seasoning. Pour the prepared seasoning mixture into the wok and bring it to a boil. Reduce the heat and simmer until the pork is tender.
Cook the vegetables. Add the carrots, green beans, and cabbage. Cook for a few minutes, just until they begin to soften. Remove the pork and vegetables from the wok and set aside, leaving the seasoned liquid behind.
Cook the bihon. Add the soaked and drained noodles to the seasoned liquid. Gently toss and cook until the noodles are tender and most of the liquid has been absorbed. If the noodles are still firm, add a little water as needed.
Combine everything. Return the pork and vegetables to the wok. Gently toss everything together and cook for another 1–2 minutes.
Season and serve. Taste and add a small amount of soy sauce or fish sauce if needed. Serve hot with fresh calamansi.