Wash, dry, and cut the ingredients for the toppings. Find four small-medium jars or Tupperware containers that would work for packing your toppings.
Start by layering the toppings in your medium sized jars, starting with the chicken. Follow with the rest of the toppings in layers, dividing ingredients evenly among the jars. End with the tomato, avocado, and eggs (they are the most tender ingredients), and place the lids on the jars. Divide lettuce evenly among 4 large Tupperware containers, and fill 4 small Tupperware with dressing if desired.
When ready to serve, dump the jar full of ingredients over the large Tupperware with the lettuce. Toss to combine, and serve with dressing if desired.