Prepare Filling: In a bowl, combine sausage meat with finely chopped onion, minced garlic, black pepper, and optional herbs like thyme or parsley. Mix well.
Prepare Pastry: Roll out ready-made puff pastry on a lightly floured surface and cut into long rectangles.
Fill and Roll: Shape the sausage mixture into a log and place it along one edge of the pastry. Roll the pastry over the filling and seal the edge with a little water.
Cut Portions: Slice the long roll into smaller pieces (about 2–3 inches each).
Egg Wash: Brush the tops with beaten egg for a shiny, golden finish. Optionally, sprinkle sesame seeds.
Bake: Bake in a preheated oven at 200°C (390°F) for 20–25 minutes until puffed and golden brown.
Serve: Let cool slightly and serve warm with ketchup or mustard.