In a large pot, heat the water to a boil. Add the bulghur, reduce heat, and cook for 20 minutes, until the bulghur is soft anf the water is absorbed. Set aside. Preheat oven to 350. Heat the oil in a large skillet, over medium-high heat; add the onions and saute for 3 minutes. Add the beets, carrots and cabbage, and saute for 7 minutes more. Add the seasonings. Remove from heat and combine with the bulghur. Shape the batter into burgers to fit buns. Place on oiled cookie sheet, and bake for 20 minutes; turn over and bake for 29 minutes more.