Sauté the onions and add the cabbage that you have finely grated. Add a cup of water and the oil and place over low heat for 10 minutes with the lid on. 

When the cabbage gets tender add 4 more cups of water and the rest of the ingredients. The rice, well washed, the lemon, the dill and the vegetable stock cube. 

Place the tomato in the blender with the tomato paste and the sugar and blend a little. Add to the pot. 

Keep it over low heat with the lid on so that the rice boils and keep watching that the water doesn't run out (even though the amount that I have here is adequate). 

When you see that the rice is done, turn the heat off but leave the lid on until you serve. 

Add salt if necessary and extra lemon if you like.