I'm sure many Japanese don't know this This dish is known as Hash Brown Egg Nests or Hash Brown Egg Cups.
The dish is made by pressing a potato mixture—typically shredded hash browns or seasoned mashed potatoes—into a muffin tin or onto a baking sheet to form a "nest" or "cup" shape. After an initial bake to crisp the potato, an egg is cracked into the center and baked until the whites are set
Want to give it a try?