In the bowl of a slow cooker, put the onion cut into half rings, grate the carrots on a large grater. Fry in vegetable oil for 10 minutes. Then add the meat cut into small cubes. Continue to fry everything together for another 20 minutes.
Add all the spices, sour cream, and a glass of boiled water. Grate the tomato. Mix everything. Close the slow cooker lid, valve put in 3. Mode suppression for 40 minutes.