Drain the excess liquid from the peas and put 4 tablespoons in a salad bowl. Add onion, cut into half rings, and olives, cut into rings, to the peas.
Peel the potatoes and cut into medium cubes, finely chop the green onions.
Add olive oil and salt. Stir the salad.
It is better to use aromatic salt: Adyghe / Svan / basil.