Begin by preparing your ingredients: peel and chop the parsnip into small pieces to facilitate easier blending.
In a blender, combine the chopped parsnip, sliced banana, almond milk, Greek yogurt, ground cinnamon, honey, and ice cubes.
Blend on high speed until the mixture is smooth and creamy, pausing to scrape down the sides of the blender as needed.
Taste the smoothie and adjust the sweetness by adding more honey if desired, blending again to incorporate.
Pour the smoothie into glasses and sprinkle a pinch of cinnamon on top for an aromatic finish.
Serve immediately and savor the delightful flavors of this nutritious smoothie.