4-ingredients chicken salad

Ingredients for 2:

1 chicken breast without skin and bones
1 1/4 lb ready champignons (not salted, not pickled)
1 cup walnuts
Salt and mayonnaise on taste

Method:

Boil chicken breast until ready. Cool, then tear by hands (do not cut!) into thin stripes, and add to a dish.
Dry and slice champignons, and add them into the dish.
Add medium walnut pieces to the dish.
Add salt and mayonnaise (or a mix of mayonnaise and sour cream, 1:1), and mix well.