Grate beets on a coarse grater or on a Korean carrot grater.
Cut the onion in half rings, sweet pepper in strips and add to the beets.
Add tomatoes, vegetable oil and all spices. Mix well.
Pour everything into a saucepan, add water and put on low heat for 40 minutes, stirring occasionally. At the end of cooking, pour the vinegar and hold on the fire for a couple more minutes.
The beetroot appetizer is ready, put it in sterile jars and roll it up.