Preheat the oven to 375°F (190°C).
In a mixing bowl, combine the softened cream cheese, powdered sugar, and vanilla extract until smooth.
Fold in the diced strawberries into the cream cheese mixture gently.
Roll out the crescent dough into a rectangle on a lightly floured surface, sealing the perforations.
Spread the cream cheese mixture evenly over the rolled-out dough.
Starting from one edge, carefully roll the dough into a log shape.
Slice the log into 1-inch pieces and place them on a baking sheet lined with parchment paper.
Brush the tops of the rolls with the beaten egg and sprinkle with sugar.
Bake in the preheated oven for 12-15 minutes or until golden brown.
Let the rolls cool slightly before serving them warm.