By Chef Mike Cook
Here is a tasty way to enjoy these healthy vegetables.
Bring a pot of water to a boil and steam the potatoes for 15 minutes.
Sweat the onions and kale in a little olive oil. Add the white wine and garlic and cook until fragrant.
Add the cream and mustard and bring to a boil. Thicken with cornstarch.
Add the precooked potatoes and bring back to a boil, then add the spinach and cook until it wilts. Season with salt and pepper.