Wild Mushroom Pad Thai

Name: Wild Mushroom Pad Thai
Ingredients: 1/2 pound dried pad Thai rice noodles (banh pho); 1/4 cup soy sauce; 2 tablespoons light brown sugar; 1 tablespoons tamarind paste (see Note); 1 tablespoon Sriracha or chile-garlic sauce; 2 tablespoons vegetable oil; 2 small shallots, thinly sliced; 8 ounces mixed wild mushrooms, stems removed and halved; 2 garlic cloves, thinly sliced; 1 cup julienned carrots (from about 1/3 pound carrots); 4 scallions, cut into 1-inch pieces, plus finely chopped scallions, for garnish; 2 large eggs, lightly beaten; 1 cup bean sprouts