Bring a large pot of water to a boil, cook 14 oz box of rice noodles according to directions.
While noodles are cooking, place mushrooms, onions and garlic in a pan over medium heat. Add ⅛-¼ C. water to saute. Start with less water as the mushrooms and onions will sweat, making moisture.
Saute vegetables until tender.
While the vegetables are cooking add the sauce ingredients to a small bowl and mix. Set aside.
Once noodles are cooked, drain and rinse under cold water. Set aside.
When the vegetables are done add noodles, sauce, carrots, half green onions and broccoli to the pan still on medium-low heat and mix well. Let all ingredients cook together for 1-2 minutes.
Plate and garnish with additional green onions and red pepper flakes to taste.