Cauliflower Kale Soup

head of cauliflower (, cut into florets, 2 lb, about 3 1/2-4 cups)

olive oil

salt and black pepper

large bunch of kale (, stems removed and leaves cut into small pieces (6oz with the stems, an average bunch of kale is 10 leaves))

small onion chopped

garlic cloves (, pressed)

vegetable or chicken stock

toasted pine nuts