In a bowl, mix together soy sauce and corn starch. Mix well until no longer lumpy. Add all remaining sauce ingredients.
Put sliced chicken into a ziplock bag or bowl and to it, add 1 tablespoon of the sauce. Toss to coat then set aside for a quick marinade while preparing vegetables.
In a wok or heavy bottomed skillet, heat the oils over medium-high heat. Add the onion, ginger and garlic and stir for 30 seconds.
Add the chicken (and the sauce it's sitting in) to the skillet spreading evenly. Cook for just 1-2 minutes, flipping half way through.
Add carrots red pepper and continue to cook for about two minutes.
Add the zoodles and sauce, tossing with tongs or two wooden spoons to thoroughly incorporate all ingredients. Cook just 2 minutes, until the zoodles are just starting to get tender. Be careful not too overcook as they will keep cooking after you remove from the heat.
Remove from the heat, add green onions and serve immediately.