Tomato, kale and bean soup

Ingredients

• 1 teaspoon olive oil
• 1 small onion, finely diced
• 2 garlic cloves, finely diced
• 1 large carrot, sliced
• 2 celery sticks, sliced
• 1 x 400g can cannellini beans
• 1 x 400g can chopped tomatoes
• 500ml reduced-salt vegetable stock (made with 1 stock cube)
• 1 teaspoon dried mixed herbs
• Freshly ground black pepper
• 100g kale, stems removed, roughly chopped
• Small handful fresh parsley, chopped