Preheat your oven to 400 degrees and unroll the pie crusts on a flat surface.

Use a round cookie cutter or a glass to cut small circles out of the dough.

Place a small spoonful of mashed beans and a pinch of cheese in the center of each circle.

Fold the dough over to create a half-moon shape. Crimp the edges with a fork to seal them.

Place on a baking sheet, brush the tops with the beaten egg, and bake for 15 minutes until golden brown.