Bon AppétitSunny-Side-up Eggs on Mustard-Creamed Spinach with Crispy CrumbsBy The Bon Appétit Test KitchenJanuary 6, 20113.3(12)Sunny-Side-up Eggs on Mustard-Creamed Spinach with Crispy CrumbsJosé PicayoArrowJump To RecipeSave StorySave this storyPrintRecipe notesBack to topTriangleSee Related Recipes and Cooking TipsiconGalleryA Spoonful of Mustard, Infinite PossibilitesThat small jar in your fridge is your new secret weapon.iconGalleryThe Incredible, Edible EggNeed to switch up your egg routine? We've got you covered.