Slow-cooker {lazy} cabbage rolls with brown rice & herbs

INGREDIENTS

1/2

head green cabbage

1 lb

lean ground beef

medium egg

1/4 cup

chopped fresh parsley

1 tsp

salt

1/2 tsp

freshly ground black pepper

1/2

medium onion, diced or grated

2 cups

cooked brown rice

1 28 ounce can

whole or diced tomatoes

1 tbsp

cane sugar or brown sugar

1 tbsp

apple cider vinegar

small garlic clove, chopped

1 tsp

salt