Once the cheese is melting, use a spatula to flip the cheese-only side of the tortilla up onto the chicken and bacon side of the tortilla. Press down.
Cook a minute or two longer until the bottom side of the tortilla is a light golden brown.
Flip the quesadilla over and cook another minute or so to brown the other side.
Remove from the skillet, cut into wedges, and serve warm.
Notes
If you are cooking the bacon fresh for this recipe, you could use 1 teaspoon of bacon fat instead of butter.Any leftover chicken that has neutral flavors, or rotisserie chicken, is perfect for this recipe.