01 - Line a baking sheet with parchment paper and set aside.
02 - Peel the bananas and cut them into 1/2-inch thick rounds.
03 - In a small bowl, combine the Greek yogurt with honey and vanilla extract, if using, stirring until smooth and well blended.
04 - Dip each banana round into the yogurt mixture, turning to coat evenly on all sides. Use a fork or toothpick for easier handling.
05 - Place each yogurt-coated banana slice onto the prepared parchment-lined baking sheet, leaving a small gap between pieces.
06 - Sprinkle the coated banana slices with chopped nuts, shredded coconut, or mini chocolate chips, if desired.
07 - Transfer the baking sheet to the freezer and freeze for at least 2 hours, or until the bites are completely firm.
08 - Remove from the freezer and transfer the frozen bites to an airtight container. Store in the freezer until ready to serve.