Cook 8 oz. noodles of choice according to the package directions until al dente.
As soon as you start heating the water for your noodles, julienne the red bell pepper and wash any other vegetables you will be using.
Heat a tablespoon of olive oil in a large skillet on medium heat. Add bell pepper and snow peas (or broccoli if using). Sauté about 8 - 10 minutes until veggies are starting to get tender. Add in spinach. Cook until wilted (about 2 minutes).
As veggies cook, combine lo mein sauce ingredients in a small bowl. Stir with whisk. Set aside.
When noodles are cooked, drain them in strainer. Turn heat to low on skillet and transfer the cooked noodles from the strainer to the skillet with the veggies.
Next add in prepared lo mein sauce, followed by chicken. Carefully stir to combine. Continue to cook lo mein over low heat approximately 3 minutes until chicken and sauce are heated through, stirring frequently.
Allow to cool slightly, dish up, and enjoy!