Begin by soaking the wakame seaweed in cold water for about 10 minutes or until it expands.
In a large pot, bring the dashi stock to a gentle simmer.
Once simmering, add the beef slices, ensuring they don’t overlap. Let them cook until they change color. This usually takes 3-4 minutes.
Incorporate the tofu cubes and shiitake mushrooms into the pot.
In a separate bowl, combine the miso paste with a few tablespoons of warm water. Mix until you achieve a smooth consistency.
Reduce the heat of your simmering pot and stir in the miso mixture. It’s vital to avoid boiling miso as this retains its flavor and beneficial nutrients.
Let the soup simmer for about 10 minutes, allowing all ingredients to meld.
Just before turning off the heat, add in the hydrated wakame and freshly chopped green onions.
Serve your Beef in miso soup immediately, while it’s steaming hot!