Place the Greek yogurt, frozen mixed berries and honey in a blender or food processor.
Blend until smooth and creamy, stopping briefly to scrape down the sides if necessary. Avoid over-blending so the mixture remains thick.
Serve immediately for a soft, creamy frozen-yogurt texture.
For a firmer consistency, transfer the mixture to a suitable container and place it in the freezer briefly before serving.
Spoon into individual bowls and finish with fresh berries and a light drizzle of honey. Add a few fresh mint leaves if desired and serve immediately.