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

Roll pastry lightly on a floured surface to smooth seams; spread Dijon if using.

Sprinkle sausage and cheddar over half the sheet, leaving a 1/2-inch border.

Fold pastry over, press edges to seal, then cut into 12 strips.

Twist each strip several times, place on sheet, brush with egg wash, and sprinkle pepper.

Bake 12–15 minutes until golden and puffed. Cool 5 minutes before serving.