Slow-Cooker Chicken Pot Pie Crock Pot

Ingredients

• 1.5 lbs boneless, skinless chicken breasts or thighs, cut into bite-sized pieces
• 2 cups carrots, peeled and diced
• 1.5 cups celery, diced
• 1.5 cups frozen peas, thawed
• 1 medium onion, finely chopped
• 3 cloves garlic, minced
• 3 cups low-sodium chicken broth
• 1 cup whole milk or heavy cream
• 1/3 cup all-purpose flour
• 4 tbsp unsalted butter
• 1 tsp dried thyme
• 1 tsp dried rosemary
• Salt and freshly ground black pepper, to taste
• 1 sheet store-bought puff pastry, thawed and cut to size OR 2 cups biscuit dough (store-bought or homemade)