Preheat your oven to 375°F (190°C).
In a bowl, mix flour and sugar thoroughly.
Cut in the cold butter until the mixture resembles coarse crumbs.
Blend in the cream cheese until the dough forms.
Roll the dough out on a floured surface to about 1/4 inch thick.
Cut into circles and place on a baking sheet lined with parchment paper.
Spoon mixed berries onto the center of each circle.
Fold the edges slightly over the filling to create a border.
Brush the edges with egg wash for a golden finish.
Bake for 20-25 minutes until golden brown.