- Slowly pre heat a large pan with a lid to a low heat. Add oil, butter, onions and garlic, cook and stir for 5 minutes or until fragrant.
- Stir in diced potato and coat well then stir in stock and allow to simmer with a lid on for 10 minutes.
- Remove lid and continue stir delicately for another 10 minutes or until the potatoes are just tender.
- Add pesto, cheese, spinach and parsley.
- Season to taste then serve.