If your noodles are dry, cook according to the packet directions, drain and rinse under cold water. Set aside.
Add the sauce ingredients to a mixing bowl and stir to combine. Set aside to use later.
Pat the chicken dry with paper towels and slice into chunks. Season all over with salt and pepper.
Heat a frying pan or wok over a high heat. When it’s very hot, add oil, swish it around and add the chicken pieces. Fry until golden brown and crispy. Set aside.
Reduce the heat to medium, add more oil, along with the onions. Stir-fry until golden brown. Add the ginger and garlic and stir-fry another minute. Increase the heat to high, then add the vegetables, pineapple, and cashews, and stir-fry for another minute.
Add the chicken, sauce, and noodles back to the pan. Stir, and simmer until the sauce is thickened and the chicken is cooked through.
Serve in bowls garnished with extra herbs and cashews or peanuts.
