Autumn minestrone soup

Name: Autumn minestrone soup
Ingredients: * 2 tablespoon olive oil; * 1 medium onion chopped; * 4 medium carrot diced; * 4 celery stalk chopped; * 1 medium zucchini diced; * 2 garlic clove peeled; * 1 sprig of rosemary 1 teaspoon, finely chopped; * 1 cup of kale chopped; * 5 small or 2 large gold potato peeled and cubed; * 1-15 ounce can chopped tomato; * 3 1/2 cup beef stock stock or vegetable stock if you prefer * see note; * 15 ounce dried cannellini bean, soaked for at least 6 hour; * 1/4 teaspoon freshly ground black pepper; * salt to taste