Chop pistachios and Goji berries.
Break chocolate into small squares or cut into chunks. Over medium heat, melt in a double-boiler or microwave for 30 seconds at a time, stirring in between each heating until fully melted.
Once the chocolate is melted, stir in half the pistachios, granola, and Goji berries, setting aside the other half for the topping. Pour mixture into a parchment paper-lined pan. Evenly spread the mixture and flatten with a spatula. Sprinkle remaining pistachios, granola, and Goji berries on top.
Keep in fridge until thoroughly chilled, then break or cut into pieces.