Slice your bananas into ¼ inch thick pieces.
Mix your peanut butter and Greek yogurt together in a small bowl.
Spread one half of a banana slice with a thin layer of peanut butter and yogurt mix.
Place a banana slice on top!
Repeat with the rest of your banana slices and your sandwiches are ready!
These banana sandwiches freeze beautifully, so I like to make a bunch and freeze the leftovers. That way, I can eat the rest whenever I'm craving a sweet but healthy treat! Note that you can also substitute almond or hazelnut butter for the peanut butter depending on your preference.