This recipe is perfect for frozen spinach. You should use your favorite brand, but mine is the one that comes in a pouch and can be steamed in the microwave. Fresh spinach is also fine. You’ll need at least 2 pounds of fresh spinach. You should saute the fresh spinach in a little butter until fully wilted. Make sure to drain and squeeze out any water that is retained in the spinach, whether it's fresh or frozen.