Boil cabbage leaves about 3 minutes or until soft. ( I core my cabbage before I place it in the water and then I gently peel the leaves off the head)
Preheat oven to 350 degrees.
Add beef, pork (or turkey), rice, onions, bell pepper, corn,garlic & herbs to a large bowl. mix together well then add the diced tomatoes.
Mix tomato sauce, vinegar, brown sugar, raisins and olives in a bowl and then spread a very thin layer of the tomato sauce mixture in a 9×13 pan.
Remove or thin any thick stem on cabbage leaves. Lay the cabbage leaf flat and add ⅓ cup filling to the center of the leaf. Fold in the sides and roll the cabbage up. Place seam side down in the pan. I normally get about 12.
Pour sauce over the cabbage and cover tightly with foil. Bake 2 hours. Let cool 20 minutes before serving.
