Meat stewed in kvass

Cut the meat into large pieces. In a deep frying pan (saute pan), heat the vegetable oil and fry the meat on all sides until a ruddy crust forms. Finely chop the onions, grate the carrots on a medium grater and add the vegetables to the meat. Salt, pepper, you can add tomato sauce or pasta. Pour kvass and simmer until ready for 1-
1. 5 hours. Serve the meat along with the sauce, sprinkling with finely chopped spring onions.