Mexican Chicken Avocado Sandwich   Mexican Chicken Avocado Sandwich Clean eating just became so much more fun with this Mexican Chicken Avocado Sandwich. It is like having the best of two worlds, guacamole and a chicken salad sandwich. No more boring lunches! Ingredients 2 precooked chicken breasts (about 1 1/4 lbs before cooking) *cut into small cubes 3 large ripe [...]