In a blender, combine the diced peaches, Greek yogurt, milk, honey (or maple syrup), vanilla extract, and ground cinnamon. Blend until smooth and creamy.
Taste the mixture and adjust sweetness if needed by adding more honey or maple syrup.
Stir in the granola gently to keep it crunchy.
Pour the mixture into popsicle molds, leaving a little space at the top for expansion.
Insert sticks and freeze for at least 4-6 hours or until completely solid.
To remove the pops, run warm water over the outside of the molds for a few seconds until they release easily.