Vegetarian Ramen with Shiitakes and Soft Eggs

Name: Vegetarian Ramen with Shiitakes and Soft Eggs
Yield: Serves 4
Cuisine: Japanese
Ingredients: 3 tablespoons, toasted sesame oil; 8 ounces, shiitake mushrooms, stemmed and sliced thin; 6 , scallions, cut into 1-inch pieces; 1 , (2-inch) piece ginger, peeled and cut into matchsticks; 2 tablespoons, white miso; 8 cups, vegetable broth; 3 (3-ounce) packages, ramen noodles, seasoning packets discarded; 2 ounces (2 cups), baby spinach; 4 soft-cooked, large eggs, halved; , Asian chili-garlic sauce