Begin by gathering all your ingredients for the Chicken Avocado Melt Sandwich. Preheat your oven to 350°F (175°C). Slice the ripe avocado in half, remove the pit, and scoop the flesh into a bowl to mash with a squeeze of lime juice.

Lay out two slices of your chosen bread. Spread a generous layer of the mashed avocado on one slice. Layer the roasted chicken evenly over the avocado, followed by a slice of cheddar cheese. Add fresh lettuce or spinach.

Add toppings by placing tomato slices and thinly sliced red onion on top of the chicken. Spread a thin layer of mayonnaise or Greek yogurt on the other slice of bread.

Close your sandwich with the other slice of bread, mayonnaise side down. Heat a skillet over medium heat and add butter or oil. Cook the sandwich for about 3–4 minutes until golden brown.

Flip the sandwich to cook the other side for another 3–4 minutes, pressing down with a spatula to ensure even cooking.

Once both sides are beautifully toasted and the cheese is melted, remove from the skillet. Let it cool for a minute, then slice in half and serve immediately.