For extra-melty cheese, cover the skillet with a lid while cooking. And if you're adding chicken, warm it slightly before adding it to the sandwich.
Calories: 648kcal | Carbohydrates: 7g | Protein: 24g | Fat: 59g | Saturated Fat: 35g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 15g | Trans Fat: 0.5g | Cholesterol: 169mg | Sodium: 860mg | Potassium: 186mg | Fiber: 0.5g | Sugar: 3g | Vitamin A: 2046IU | Vitamin C: 17mg | Calcium: 672mg | Iron: 0.5mg