2. Top with lettuce, tomato, onion, avocado and carnitas.
3. Cover sandwich with top of bun and serve.
Nutritional information per serving: Calories 375; Total Fat 16g; Saturated Fat 5g; Trans Fat 0; Cholesterol 75mg; Sodium 916mg; Total Carbohydrate 30g; Dietary Fiber 4g; Total Sugars 5g; Protein 29g