Line a plate (or something that fits into your freezer) with parchment paper. Set aside.
In a medium-sized bowl combine blueberries, almonds, walnuts, and cashews. Gently mix together to combine and scoop out about a 2 tbsp. sized cluster of berries and nuts on the parchment paper. Make sure each blueberry and nut is touching the other so that the cluster stays together once frozen.
In a microwave safe bowl, heat the chocolate. Heat in increments of 20 seconds and stir between each time period until melted.
Use a fork to drizzle the melted chocolate over the entire cluster and sprinkle with shredded coconut flakes, pumpkin seeds, and a pinch of salt.
Repeat with remaining blueberries and nuts. Freeze for at least two hours.
Store covered in the freezer for up to three months.