Cut the boiled chicken fillet into small cubes, finely chop the onion.
Grate the eggs on a coarse grater, raw carrots on a fine one.
Grate the pickled cucumber on a coarse grater and squeeze out the excess juice. To collect lettuce in layers :
1) chicken + mayonnaise
2) cucumber
3) onion + mayonnaise
4) egg
5) carrot + mayonnaise
6) peas