04To the drained beef mixture, add the diced tomatoes (undrained), salt, pepper, sugar and caraway seeds. Stir together well and spread this mixture over the cabbage in the baking dish.05In a small bowl, stir together the tomato sauce and sour cream, blending well. Spread this mixture over the beef mixture in the baking dish.06Cover and bake for 1 hour.07Uncover, evenly sprinkle with the 1 cup of shredded swiss cheese and bake (uncovered) for an additional 15-20 minutes.