Mix the beef and five-spice in a bowl, then set aside to marinate. Soften the noodles in boiling water following pack instructions, drain then set aside. Thinly slice the red chilli, leaving the seeds if you prefer a little extra heat. Mix with the garlic, ginger and lemongrass in a small bowl. Heat half the oil in a wok, add the chilli mixture and stir-fry for 1 min until softened but not coloured. Remove with a slotted spoon and set aside while you cook the beef.
Heat the remaining oil, add the beef and stir-fry over a high heat for 1 min until browned and just cooked through.
Return the chilli mixture to the pan with the sugar snaps, baby corn and half the spring onions. Stir-fry for 1 min more before adding the drained noodles. Mix to thoroughly combine, take off the heat and add a squeeze of lime juice, the soy sauce and fish sauce.
Divide between four plates. Scatter with the peanuts, garnish with remaining spring onions and chopped coriander.