Prepare your zucchini noodles by carefully slicing them into strips or using a spiralizer.
Place your zucchini noodles into a colander over the sink. Sprinkle them lightly with sea salt and allow to drain off any moisture for about 10 minutes.
Heat your oil in a large skillet over medium heat. Sauté your mushrooms and garlic for 5 minutes; stir in the arrowroot powder. Cook for about a minute, while stirring constantly. Continue to stir while adding in the milk little by little, until fully incorporated and smooth.
Allow your sauce to gently bubble for a couple of minutes, then stir in the parmesan cheese and remove from heat.
Stir in the yogurt, then taste test and add sea salt, and pepper if desired.
Lightly blot your zucchini noodles with a paper towel to remove excess moisture.
Add your prepared zucchini noodles into your sauce and stir to combine.
Sprinkle with fresh herbs if desired.
Enjoy while hot!