In a medium bowl, combine the Greek yogurt, almond milk, chopped dill, chopped parsley, garlic powder, onion powder, salt, and black pepper.
Whisk all ingredients together until well combined and creamy. If the dressing is too thick, add a little more almond milk, one teaspoon at a time, until desired consistency is reached.
Stir in the lemon juice.
Taste and adjust seasonings as needed.
Serve immediately or transfer to an airtight container and refrigerate for at least 30 minutes to allow the flavors to meld. The dressing will thicken as it chills.
Notes
This ranch dressing is best served chilled. It can be stored in the refrigerator for up to 5 days.