Line a baking sheet with parchment paper.
In a large bowl, mix Greek yogurt, maple syrup, and cocoa powder until well combined. Add 1 cup of chocolate granola and mix again.
Spread the yogurt mixture evenly on the parchment paper, about ¼-inch thick.
Sprinkle sliced strawberries and remaining granola over the yogurt, pressing them gently into the surface.
Melt chocolate chips in a microwave-safe bowl in 20-second intervals until smooth. Drizzle melted chocolate over the bark.
Freeze the bark for at least 2 hours until completely firm.
Once frozen, break the bark into pieces and store in a freezer-safe container until ready to enjoy.