Wagyu Beef Hot Italian Sausage, Mushroom, and Leek Puff Pastry

Ingredients

• 1 PACKAGE Double 8 Cattle Company Fullblood Wagyu Beef Hot Italian Sausage (ground)
• 1 PACKAGE (2 PIECES/1.2 LB) Puff Pastry Dough (thawed)
• 2 TBSP Grapeseed Oil
• 3 Leeks (cut into 1/4 inch coins, rinsed well, and dried on paper towels)
• 1 LB Cremini Mushrooms (sliced thin)
• 3 TBSP Butter
• 4 Garlic Cloves (minced)
• 4 OZ Smoked Provolone Cheese (grated)
• 2 TSP Kosher Salt
• 1/2 TSP Black Pepper
• 1/2 CUP Dry Sherry or White Wine
• 4 OZ Heavy Cream
• 1 Large Egg
• 1 TBSP Water