We cut potatoes in small cubes, fry in vegetable oil until half-cooked.
Chop cabbage, chop onion and bell pepper, grate carrots. Mix carrots, onions and peppers and fry in vegetable oil until tender.
Add finely chopped tomato and tomato paste, add a little water, simmer another 10 minutes, until almost all the water has evaporated.
Salt, pepper, add a little sugar. Then, add the cabbage and simmer over medium heat for about 15 minutes.
When the cabbage is almost ready, add potatoes to it, reduce heat and cover, simmer another 15 minutes: