Prepare the Sausage Filling

1. Preheat Oven: Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
2. Cook the Sausage: In a skillet, cook the ground sausage over medium heat until browned and fully cooked. Drain excess grease and let it cool slightly.
3. Roll Out the Puff Pastry: On a lightly floured surface, roll out the puff pastry sheet into a rectangle.
4. Add the Sausage: Spread the cooked sausage evenly over the puff pastry, leaving a small border around the edges.
5. Optional Add-ins: If you’re using cheese or herbs, sprinkle them over the sausage at this stage.

Roll and Slice the Pinwheels

1. Roll the Pastry: Starting from one of the longer sides, roll the puff pastry into a tight log.
2. Slice the Pinwheels: Using a sharp knife, slice the roll into 1/2-inch thick pinwheels. You should get about 24 pinwheels.
3. Egg Wash: Place the pinwheels on the prepared baking sheet and brush the tops with beaten egg for a golden finish.

Bake the Pinwheels

1. Bake: Bake the pinwheels in the preheated oven for 20-25 minutes, or until golden brown and puffed up.
2. Cool Slightly: Remove from the oven and allow them to cool on the baking sheet for a few minutes before serving.