Peel the bananas and cut them in half. Insert a popsicle stick into each half and place them on a baking sheet lined with parchment paper.
In a mixing bowl, combine the Greek yogurt, honey or maple syrup (if using), and vanilla extract. Mix until smooth.
Dip each banana half into the yogurt mixture, ensuring they are fully coated.
Roll the coated bananas in granola or chopped nuts until evenly covered.
Place the coated bananas back on the baking sheet and freeze for at least 2 hours or until solid.
If using chocolate, melt the dark chocolate chips in a microwave-safe bowl in 30-second intervals, stirring in between until smooth. Drizzle over the frozen banana pops before serving.