Peel the onion and cut it into circles.
Grind the garlic with salt and walnuts finely.
Cut the tomatoes into thin circles. Put a layer of cut tomatoes on a dish, salt and pepper it. Put a layer of the garlic-walnuts mass on it. Then put a layer of cut tomatoes again. Do this in turns. Cover the last layer of cut tomatoes with the onion cut into circles.
Pour the vegetable oil on the salad and decorate it with parsley and dill greens before serving.