Prepare the Baking Sheet: Line a baking sheet with parchment paper for easy removal.

Mix the Yogurt Base: In a mixing bowl, combine the Greek yogurt with the vanilla extract (if using plain yogurt). Mix well until smooth.

Spoon Yogurt Blobs: Using a spoon, drop 2-3 tablespoon dollops of the yogurt mixture onto the prepared baking sheet, spacing them apart.

Add Toppings: On each yogurt dollop, evenly distribute blueberries, sliced strawberries, and a sprinkle of granola.

Freeze the Yogurt Bark: Place the baking sheet in the freezer and freeze for at least 2-4 hours or until the yogurt is fully frozen and firm.

Serve and Store: Once the yogurt bites are completely frozen, remove them from the freezer. Enjoy them immediately, or store them in an airtight container or freezer bag in the freezer for up to 2 weeks.