Wash beans, pour with cool water and soak for 4-5 hours. Then change water, add shredded carrot and celery root and boil until soften.

Stir-fry diced onion in vegetable oil, add pepper and tomato puree. Combine onion with beans, turn to a pan and bake in an oven for 15 minutes. Season with salt 5 minutes before the end of the baking.