Fresh spinach can be substituted for frozen spinach in your favorite recipes. Substitute 1 1/2 cups of fresh spinach for one 10-ounce package of frozen spinach.
The fresh spinach should be wilted, or cooked down, to have the same volume and consistency of frozen spinach in a recipe. Spinach can be steamed for three to five minutes until tender. It can also be sautéed in a skillet with a small amount of boiling, salted water and stirred frequently for three to five minutes. When choosing whether to use fresh or frozen spinach, consider the desired type of food. Fresh spinach is best for soups and salads, whereas frozen spinach is perfect for dips, casseroles and stuffing. Frozen spinach is ideal for recipes in which spinach is the main ingredient, such as spanakopita.