Preheat the oven to 375°F and line a baking sheet with parchment paper.
In a mixing bowl, combine the ground pork sausage, pumpkin puree, pumpkin pie spice, and salt until evenly mixed.
Unroll the crescent dough and press the seams together to form 4 rectangles.
Divide the sausage mixture into 4 equal portions and shape each into a log. Place one log along the long edge of each dough rectangle.
Roll the dough around the filling and pinch the seams and ends to seal.
In a small bowl, beat the egg with the milk. Brush the tops of each roll with the mixture.
Place the rolls on the prepared baking sheet and bake for 18 to 22 minutes until the pastry is golden brown and the filling reaches 160°F.