Mince the meat, boil rice, chill and mix with chopped meat, add finely chopped and slightly grilled onions, as well as salt and pepper. Boil whole cabbage leaves in boiling water for 5-7 minutes, take out, cool, lay on a table, carefully cut off the stems to the thickness of the leaf, put the minced meat, wrap like sausages, fry and put into a pan. Prepare a sour cream sauce: mix tomato puree, sour cream and water, and pour into a still hot frying pan where the cabbage rolls have just been fried. Quickly add flour, stir well, bring to the boil, put mint or thyme and salt. Cover galumpkis with the prepared sauce and stew under the lid on a low heat or in the oven without a lid for 30-40 minutes. Serve galumpkis in a sauce in which they were stewed, and sprinkle with chopped greens.