Easy & Delicious Chicken Pot Pie Slow Cooker

Ingredients

• 2 cups cooked chicken, shredded (preferably rotisserie chicken)
• 1 cup frozen peas
• 1 cup diced carrots
• 1 cup diced potatoes
• 1 cup diced celery
• 1 small yellow onion, diced
• 3 cloves garlic, minced
• 2 cups chicken broth
• 1 cup heavy cream
• 2 tablespoons unsalted butter
• 2 teaspoons dried thyme
• 1 teaspoon dried rosemary
• Salt and pepper, to taste
• 1 package puff pastry sheets (2 sheets recommended)
• 1 large egg, beaten (for egg wash)