In a large mixing bowl, carefully combine the shredded chicken, creamy mashed avocado, plain Greek yogurt, Dijon mustard, garlic powder, and a pinch of salt and pepper. Mix until everything is well incorporated and has a smooth consistency.
Preheat a non-stick skillet over medium heat, adding a drizzle of olive oil or a small amount of butter to create a nice cooking surface.
Assemble your delicious sandwich by generously spreading the chicken-avocado mixture on two slices of whole grain bread, ensuring an even layer.
On top of the chicken-avocado layer, add a handful of fresh spinach leaves followed by a quarter cup of shredded cheddar cheese, allowing it to melt beautifully.
Place the remaining slices of bread on top to form complete sandwiches.
Carefully transfer the sandwiches into the preheated skillet, grilling them for approximately 4-5 minutes on each side. Cook until the bread is golden brown and crispy, and the cheddar cheese has melted into a gooey layer of delight.
Once done, use a spatula to remove the sandwiches from the skillet, cut them in half for easy eating, and serve warm for the best experience.
Notes
Serve with sweet potato fries or a light salad for a complete meal.