Make the dressing:
Combine all ingredients, except for the sesame oil and olive oil in a food processor or hand blender. Run the blender for a few seconds, until all ingredients are combined. With the machine running, drizzle in the oils.
Cook the noodles:
In a pot, cook the dried noodles according to the package instructions. Drain and set aside.
Sauté the mushrooms:
Heat a frying pan over high heat. Add the butter and when the butter starts bubbling, add the mushrooms. Sauté the mushrooms for 2 minutes.
Combine noodles and mushrooms, add dressing to taste:
In a large bowl, toss the cooked noodles with the mushrooms, fresh herbs, sesame seeds and some of the dressing (to taste.)