I. Preheat the Oven:

• Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.

II. Prepare the Filling:

• Heat olive oil in a skillet over medium heat. Add the diced onion and cook until soft and translucent, about 5 minutes. Add the minced garlic and cook for another minute. Remove from heat and let cool slightly.
• In a bowl, combine the sausage meat with the cooked onions and garlic, dried sage, dried thyme, salt, and black pepper. Mix until well combined.

III. Prepare the Puff Pastry:

• Roll out the puff pastry sheet on a lightly floured surface. If the pastry is not already in a rectangular shape, trim it to make a rectangle, approximately 10×12 inches (25×30 cm).

IV. Assemble the Sausage Rolls:

• Spread the sausage mixture evenly along one long edge of the puff pastry, forming a log shape. Leave a small border around the edges.
• Roll the pastry over the sausage mixture to form a tight log. Pinch the edges to seal and place the seam side down on the prepared baking sheet.

V. Slice and Brush:

• Slice the rolled pastry into 1½-inch (4 cm) pieces and place them on the baking sheet. Brush the tops with the beaten egg for a golden finish.

VI. Bake:

• Bake in the preheated oven for 20-25 minutes, or until the pastry is golden brown and the sausage is cooked through.

VII. Serve:

• Allow the sausage rolls to cool slightly before serving. Enjoy warm or at room temperature.