Dice onion into the small squares, shred the carrots.
Slice the sausages.
In a large skillet, heat the oil over medium heat. Add onion and cook until lightly brown.
Add shredded carrots and continue cooking for couple more minutes, stirring constantly.
Add cabbage and stir well.
In a few minutes add sausage. Bury the sausages under the cabbage, to get the brown color.
When the sausages are lightly brown, add salt and pepper, bay leaf, and some water (about 100 ml), mix well. Reduce heat to low, cover the skillet with lid and simmer for about 10 minutes. Mix every 2-3 minutes.