Pour the chia seeds into the milk, stir, and set aside. Mash the bananas in a bowl with a fork. Pour the milk/chia seed mix into the bowl and mix well.
Scoop 1/2 to 1 teaspoon of granola into your popsicle molds. Pour the banana, chia seed, and milk mixture into the molds.
Cap and insert popsicle sticks. Place popsicles in the freezer and let freeze for at least 5 hours.