Cabbage Rolls with back

1 head cabbage , center core removed 2 -3 tablespoons butter 1 cup chopped onion 1 lb ground beef 1 lb ground pork 1 lb ground veal 2 cups cooked white rice 1[...]

1 medium cabbage , head cored 2 lbs ground beef 2 onions , chopped salt and pepper, to taste 2 cups cooked rice garlic , minced, to taste 1 (14 1/2 ounce) can[...]