Sausage Pinwheels

Bahan-bahan (18 porsi)

• 1 pound sausage or English bangers, (skin removed and crumbled)
• ½ large onion, (finely chopped)
• 1½ tablespoons finely chopped fresh sage
• 3 tablespoons finely grated Parmesan cheese
• One 17.3 ounce package Puff Pastry (2 sheets), (thawed)
• 1 large egg, (beaten with 1 tablespoon water)
• salt and pepper, (to taste)
• chopped green onions or chives, (for garnish (optional))