Marsala Chicken Skillet Pot Pie - Big Bear's Wife

Ingredients

• 2 tablespoons olive oil or extra virgin olive oil
• 8 chicken tenderloins (skinless) - about 3 cups chopped chicken
• 1 tablespoon your favorite seasoning (I used Badia Complete Seasoning)
• 8 tablespoons butter
• 3 ribs celery, washed and diced
• 8 ounces mushrooms, sliced
• 1/2 cup all- purpose flour
• 2 cups chicken broth
• 1/2 cup Marsala cooking wine
• 1/2 cup heavy cream (or whole milk)
• 15 ounces can corn kernels
• 15 ounces can green peas
• salt and pepper to taste
• 1 sheet puff pastry, defrosted
• 1 egg, beaten