01 - Place the frozen mixed berries, peeled banana, plain Greek yogurt, unsweetened apple juice, honey, and ground cinnamon into a high-speed blender.
02 - Secure the blender lid and process on high speed until the mixture is completely smooth and creamy, with no visible berry chunks.
03 - Carefully taste the smoothie. If a sweeter profile is desired, add an additional teaspoon of honey and blend briefly to incorporate.
04 - Divide the prepared smoothie evenly between two serving glasses.
05 - If utilizing, sprinkle 1 teaspoon of chia seeds over each smoothie and adorn with a few fresh berries. Serve immediately for optimal freshness.