Preheat Oven:

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

Prepare the Sausage Filling:

In a mixing bowl, combine the ground sausage, breadcrumbs, onion, garlic, thyme, paprika, salt, and pepper. Mix well until fully incorporated.

Roll Out the Pastry:

Lightly flour your work surface and roll out the puff pastry into a large rectangle, about 1/8 inch thick. Cut the pastry into two or three long strips.

Assemble the Rolls:

Spoon the sausage mixture evenly down the center of each pastry strip. Fold the pastry over the filling, overlapping the edges slightly, and press to seal. Place the rolls seam-side down on the baking sheet.

Cut and Brush:

Use a sharp knife to cut each roll into bite-sized pieces (about 2 inches each). Brush the tops with beaten egg and sprinkle with sesame or poppy seeds, if desired.

Bake:

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

Cool and Serve:

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