To make the oregano pesto; put oregano leaves, walnuts, garlic and cheese in a food processor, pulse a few times to chop finely. Slowly adding the oil, pulse again until it combines together. Season with salt and pepper according to your taste.
To make the thyme pesto; put thyme leaves, spinach, pine nuts, garlic and cheese in a food processor, pulse a few times to chop finely. Slowly adding the oil, pulse again until it combines together. Season with salt and pepper according to your taste.