Clean the savoy cabbage, cut 8 outer leaves from the head and wash thoroughly. Use the remaining head for other purposes. Cut the panicle flat. Blanch in boiling salt water. Remove the leaves and rinse in cold water
Peel and finely dice the onions. Wash the thyme, shake dry and pluck the leaves from the stems. Knead minced meat, half onion cubes, thyme, breadcrumbs, milk and egg. Season with paprika, salt and pepper. Divide the minced meat mixture between the savoy cabbage leaves. Tie the savoy cabbage leaves with kitchen twine into small bags
Heat oil in a wide pot or a roasting pan and sauté the remaining onion cubes briefly. Add tomato paste, stir and dust with flour. Add the chopped tomatoes and stock. Bring to the boil and simmer for about 5 minutes while stirring. Season to taste with sugar, salt, pepper and oregano
Cook the savoy cabbage in the tomato sauce in a closed pot for about 20 minutes. In the meantime prepare the rice in boiling salted water according to the instructions on the packet. Arrange rice, sauce and parcels on plates