Turkey Pot Pie - Olivia's Organics

Ingredients

• ⅔ cup unsalted butter
• 2 stalks Olivia’s Organics celery - diced
• 1 medium onion - diced
• 2 teaspoons fresh sage - minced
• ⅔ cup flour
• 1 ⅓ cups whole milk
• 1 ¾ cups chicken broth
• 3 cups leftover turkey - cubed
• 1 cup leftover carrots
• 1 cup leftover Brussels sprouts - chopped
• ½ cup leftover mushrooms
• Salt and pepper to taste
• 1 egg whisked
• 1 large piece prepared puff pastry