Easy Sausage Rolls

1 pound sage sausage
1 pkg puff pastry, defrosted
Mustard
1 egg yolk

• Brown sausage in skillet; drain well (rinse if desired). Lay sheets of puff pastry on counter and cut into 12 rectangles (6 per sheet) using a pizza cutter.
• Spread each rectangle with mustard. Spoon 1/12 of sausage into the center of each pastry rectangle. Fold over and pinch edges together.
• Beat egg yolk and brush over the tops of the rolls. Place rolls 2 inches apart on baking sheet.
• Bake at 400 for 15-20 minutes or until tops are golden brown. Allow to cool slightly before eating, but best served warm.