Start by cleaning the mushrooms. Wipe them gently with a damp cloth to remove any dirt. Slice the mushrooms thinly and set them aside. Mince the garlic and ginger and chop the parsley and chives.
In a mixing bowl, combine the Greek yogurt, lemon juice, minced garlic, minced ginger, and olive oil. Whisk together until smooth. Add salt and pepper to taste, adjusting to your preference.
In a large bowl, add the sliced mushrooms, chopped parsley, and chives. Pour the dressing over the mixture and gently toss to combine.
Transfer the salad to a serving dish and garnish with additional parsley or chives if desired. This salad can be enjoyed immediately or chilled for a bit to let the flavors meld together.