Create zucchini noodles using a spiralizer. Set aside.
In a pot, stir fry the garlic, ginger, and mushrooms in sesame oil over medium high heat. Add in the zucchini noodles and continue to heat for about 5 minutes.
Add in the stock and soy sauce. Bring to a boil.
Immediately lower heat and allow soup to simmer until the noodles are soft. Add in spinach, carrots, green onions, and salt/pepper.