Wipe all mushrooms clean with a damp paper towel to remove any dirt. Don't wash them — they'll absorb water and won't sauté properly.
1 lb white button mushrooms, 1 lb portobello mushrooms, 1 lb oyster mushrooms, 10 oz shimeji mushrooms, 7 oz enoki mushrooms
Trim the tough stems from the oyster mushrooms and cut away any hard stem ends from the button and portobello mushrooms. Trim the stem edges from the shimeji and the enoki.
Cut button mushrooms in half (small) or quarters (large). Cut oyster and portobello mushrooms into rough cubes. Leave trumpet and chanterelle mushrooms whole.
In a large pot, heat 2 tablespoons of the measured olive oil over medium heat. Add the onion, garlic, and celery, and cook for 4–5 minutes until softened.
⅓ cup olive oil, 1 large yellow onion, 5 garlic cloves, 2 celery stalks
Add the broth, bay leaf, and thyme. Let it cook while you sauté the mushrooms.
1 cup good quality vegetable broth, Leaves from ½ bunch fresh thyme,, 1 bay leaf
In a large skillet over very high heat, sauté the button mushrooms, portobello, and oyster mushrooms in batches with the remaining olive oil — about 4–5 minutes per batch, until nicely browned. Don't crowd the pan. Add each finished batch to the pot.
In the same skillet, sauté the shimeji mushrooms over high heat for 3–4 minutes until golden and slightly crisp at the edges. Set aside — these are for serving.
Once the three mushroom types are sautéed and in the pot, add enough water to cover well. Add the ground coriander, and the ginger. Bring to a low simmer and cook for about 30 minutes, skimming any foam from the surface with a large spoon.
1 teaspoon ground coriander, 1 teaspoon ground ginger
If needed, add a small splash of hot water — just enough to keep the mushrooms covered. Don't add too much or the broth will be thin.
Stir in the chopped dill, arugula, and lettuce and remove from heat.
½ cup fresh dill, 2 large handfuls of arugula (rocket), 1 head romaine lettuce
In a bowl, whisk together the eggs and lemon juice. Slowly ladle several scoops of hot broth into the egg mixture, whisking constantly, to temper it.
5 eggs, Juice of 1 lemon
Pour the tempered avgolemono back into the pot and gently swirl to combine.
Add the crispy shimeji and the enoki mushrooms directly to the hot soup. The enoki need only 1–2 minutes in the residual heat — do not boil them.
Season with salt and pepper to taste and serve immediately.
sea salt, freshly ground black pepper