Begin by preparing the noodles for stir-frying based on the package instructions.
For the sauce, add the veggie broth, tamari, garlic, cornstarch, vinegar, honey, sesame oil, chili flakes, salt, and pepper to taste. Whisk until combined and set it aside.
Meanwhile, prep your veggies. Once ready, add the vegetable oil to a large saute pan or wok. Turn the heat to medium-high.
Add the veggies aside from the spinach and fry for about 3 minutes until wilted.
Drain the noodles and add them to the wok with the veggies. Also, add the sauce to the pan.
Stir fry for 1-2 minutes until the sauce has thickened and the noodles have absorbed the flavors.
Serve the stir fry with some Sriracha and cilantro on top. Enjoy!