Gather the ingredients.
Place your avocado halves on a serving platter and spoon out some of the centers to make 1/2 cup mashed avocado. Set them aside while you make the rest of the filling.
In a bowl, add the mashed avocado, chicken, mayo and lemon juice. Combine well, then add the buffalo sauce and salt and pepper. Taste and adjust spices as desired.
Spoon this filling evenly into each half of the avocados. Sprinkle with more buffalo sauce if desired.
Enjoy immediately or keep refrigerated until ready to serve.