Add the yogurt and fruit to a blender or food processor and puree until smooth.
Pour it onto the silicone mold and spread it out using an offset spatula or the back of a spoon. Place the mold on a baking sheet and set it in the freezer for two hours, or until frozen solid.
Remove it from the freezer, then pop the yogurt bites out of the mold. Serve them immediately, or store them in an airtight container in the freezer.