"A surprising combo of egg yolks and spinach that is very good and good for you! Make sure to add enough mayo so that mixture is creamy not too thick."
1Place eggs in a pot and cover with water; bring to a boil for 10 minutes. Transfer eggs to a colander and run under cold water until completely cooled. Peel eggs, cut in half lengthwise, and scoop egg yolks into a small bowl. Place egg whites onto a serving plate.
2Mash egg yolks with a fork until crumbly. Stir mayonnaise and mustard into yolks until smooth. Fold spinach into mayonnaise mixture; season with salt and pepper. Spoon mixture onto the egg whites; top each egg with Parmesan cheese. Refrigerate until completely chilled, at least 1 hour.