Combine feta, yogurt, olive oil, garlic, lemon juice, and red pepper flakes to food processor bowl fitted with the S blade.
Pulse until creamy and smooth, scraping down the sides of the bowl.
Taste test. Add more red pepper flakes or lemon juice, if desired. If you want a hint of sweetness, drizzle in some honey.
Garnish with parsley and olive oil just before serving.
Serve with bread, pita, pita chips and fresh cut vegetables.
