Set the uncooked noodles in a bowl of cold-water to soak.
Spiralize that the zucchini, red-pepper and onion to noodle-like shapes. Cut the carrots into tiny pieces (or even spiralize them, also, if they are large enough).
Shake up the sauce-ingredients in a jar.
Heat a tbsp of oil over moderate high heat. Add the veggies stir fry using tongs for 2-3minutes or till tender-crisp (in case they're not spiralized, then they may need longer). Take care to not overcook them they'll get soggy & heavy. Transfer to a dish & put aside.
Add another tbsp of oil into the pan. Drain the noodles, then add the noodles into the skillet and stir fry for a moment, with tongs to throw. Add the sauce & stir fry for 2 minutes till the sauce is beginning to thicken and adhere into the noodles. Push the noodles apart to create a small space for the egg pour the beaten egg to the pan and allow it to sit for a minutes. Toss everything around together with the tongs. The egg mixture will follow the noodles and that which will begin getting tacky.
Add in the vegetables, toss together & remove from heat. Stir in the vegetables and peanuts and serve immediately.