Add one spoonful of sunflower oil, vinegar and salt to the stewed vegetables, mix and keep on low heat for another 2-3 minutes.
Fill the prepared hot jars with hot caviar 1.5-2 cm below the top of the neck. Cover with lids, transfer to a sterilization dish and hold in boiling water for 30-50 minutes, depending on the size of the cans (I stood for 30 minutes, since the cans are small).