Chop chicken breast into cubes. Clean the leeks and squeeze the lemon. Cook chopped leeks on the water briefly, add the chopped chicken cubes and cook together for a few minutes. Add lemon juice, vegetable soup (about 250ml), herbal spices and cook over low heat about 15 minutes. Clean avocados, chop him into cubes pulp, then add the mixture to the pan and cook together for about 5 minutes. Serve with a fresh salad.