Peel the bananas and slice them into ½ inch thick rounds.
Line your baking sheet with parchment paper to prevent sticking.
In a mixing bowl, combine the peanut butter and a dash of salt, stirring until smooth. If desired, add honey and vanilla extract for additional flavor.
Take a slice of banana, scoop a small amount of the peanut butter mixture onto one side, and place another banana slice on top to make a sandwich. Repeat this process until all the banana slices are used.
Once the banana sandwiches are assembled, dip each one into the Greek yogurt, making sure they are evenly coated.
Place the yogurt-coated banana bites back onto the lined baking sheet.
Freeze for about 2-3 hours, or until the yogurt is firm and the bites are frozen solid.
Once frozen, transfer the bites to a freezer-safe container for storage.