- To make the sauce, combine the hoisin sauce, ketchup, vinegar, garlic and ginger in a small bowl. Set aside for later use.
- Warm the oil in a wok or large frying pan over a high heat. Add the turkey and stir until browned on all sides. Then add the broccoli and mushrooms and stir for 2 minutes. Add the pak choi and noodles, and stir for a further 1 minute.
- Pour the sauce into the pan and mix thoroughly, coating all the ingredients. Reduce the heat and allow to simmer for 3–4 minutes until piping hot and the turkey is cooked through.
- Scatter the spring onions on top (optional) and serve immediately.