If you’d like to use fresh greens instead of frozen, use 1 1/2 pounds for the same yield as the frozen spinach. Rinse the greens well, trim them as needed, removing any tough stems. Slice the greens if using a variety with large leaves. Food Network defines high-fiber as 5 grams or more of protein per serving and lower-calorie as 400 or less calories per serving. Settings may vary on your Instant Pot® depending on the model. Please refer to the manufacturer's guide.