Prepare noodles according to package directions, then drain and set aside.
While noodles are cooking, heat olive oil in large skillet or wok over medium high heat. Saute garlic and onion together for 2 minutes, then add broccoli, bell peppers, carrots, and peas. Saute for 4 minutes, then add in sliced mushrooms. Saute another 2 minutes.
In a small bowl, whisk together all ingredients for sauce, then pour over top of vegetables. Stir, then add in cooked noodles and toss to combine.
Serve immediately.
Recipe by Tone and Tighten at https://tone-and-tighten.com/easy-vegetable-lo-mein.html