In a small saucepan, add the fresh blueberries and heat them over medium heat. Cook while stirring gently until the blueberries start to burst and release their juices, about 5 minutes. Remove from heat and let cool slightly.
In a blender or food processor, combine the Greek yogurt, honey (or maple syrup), lemon juice, lemon zest, and a pinch of salt. Blend until smooth and creamy.
In a bowl, gently fold the cooked blueberry mixture into the yogurt blend, ensuring there are marble-like swirls for added flavor and visual appeal. Avoid over-mixing so that some blueberries remain whole.
Pour the blueberry yogurt mixture into popsicle molds, filling each mold about 3/4 full. Leave a little space at the top to allow for expansion during freezing.
Insert popsicle sticks into each mold and place them in the freezer. Freeze for at least 6 hours or until solid.
To remove the popsicles, run warm water over the outside of the molds for a few seconds until they release easily. Enjoy your refreshing blueberry lemon popsicles!