Heat the oil in a large pan, add the onions and fry until soft and translucent.
Add the garlic and cook for one more minute.
Turn up the heat and add half the spinach. Cook, stirring constantly, until it wilts. Now add the rest of the spinach and continue cooking over a high heat so all the liquid evaporates.
When the spinach is soft, stir in the KNORR Creamy Blue Cheese Salad Dressing and the cream. Cook for a few more minutes, or until the cream has slightly thickened and reduced. Season to taste with salt and pepper.
In the meantime, toast the walnuts. Place the nuts in a dry frying pan and cook, tossing frequently, over a medium heat, or until they are hot and golden. Watch them closely so they don’t burn.
Serve the creamed spinach hot, topped with the toasted walnuts and green olives.