Making a Chicken Avocado Melt Sandwich is simple. Just follow these steps:

1. Prepare the Avocado: In a small bowl, mash the ripe avocado. Stir in lime juice, and season with salt and pepper to taste. Set aside.
2. Combine Chicken and Sauce: In another bowl, mix the shredded chicken with mayonnaise, if using. This adds extra moisture and flavor. Season with salt and pepper as needed.
3. Assemble Ingredients: Lay the slices of bread on a clean surface. Spread the mashed avocado evenly on one slice of bread. Pile the chicken mixture on top of the avocado.
4. Add Cheese: Sprinkle the shredded cheese over the chicken mixture.
5. Top with Bread: Place the second slice of bread on top of the cheese to form a sandwich.
6. Cook the Sandwich: Heat a frying pan or skillet over medium heat. Lightly grease it with butter or olive oil.
7. Grill to Perfection: Carefully place the sandwich in the pan. Cook for about 3–4 minutes on each side, pressing down gently with a spatula, until the bread is golden brown and the cheese melts.
8. Serve and Enjoy: Remove from the heat and slice in half. Garnish with fresh herbs if desired, and enjoy.