Cut 1 Japanese leek (naganegi) into diagonal slices ½ inch thick and 50 g chrysanthemum greens (shungiku) into 2 inch pieces. Separate the stems and caps of 2 fresh shiitake mushroom, thinly slice the stems and cut decorative patterns on top of the caps.
Separate two 2 pasteurized eggs, place the yolks in a bowl and set aside to garnish the dish later. Add the whites to a separate bowl and crack in another 2 egg. Whisk well and set by the stove.
Take a cold pan and add ½ tsp dashi granules, 2 tbsp Japanese soy sauce (koikuchi shoyu), 2 tbsp sake, 2 tbsp mirin and 1 ½ tbsp sugar. Mix well.
Add shiitake mushrooms (both caps and stems) to the sauce and heat over medium-low, stirring occasionally.
Once it starts to bubble and shiitake is slightly softened, add 200 g thinly sliced beef and cook to your preferred doneness.
Once cooked to your liking, transfer the beef and mushroom caps to a plate and set aside.
Add the crown daisy and leeks to the pan and cook in the leftover sauce until slightly softened.
Once softened, pour in the bowl of egg mixture from earlier.
Cook the eggs to your preferred doneness. If you prefer it well done, place a lid on to help the top steam.
Divide 2 portions cooked Japanese short-grain rice into serving bowls and topped with the simmered eggs and vegetables.
Arrange the beef on top and garnish each bowl with a shiitake cap, egg yolk and red pickled ginger (benishoga).