First, prep the sweet potato, onion, and kale. Lauren Zaser / BuzzFeed To separate the eggs from the white, you can use the eggshells, like this: Lauren Zaser / BuzzFeed The egg whites should be in a large mixing bowl, and the yolks should be in a smaller mixing bowl. Lauren Zaser / BuzzFeed Thoroughly … Continue reading Kale, Sweet Potato, and Onion Frittata BUZZFEED