Turkey and Vegetable Chow Fun

Name: Turkey and Vegetable Chow Fun
Ingredients: Kosher salt; 12 ounces wide rice noodles, pappardelle or fettuccine; 2 teaspoons toasted sesame oil; 1/4 cup oyster sauce; 2 tablespoons rice vinegar (not seasoned); 3 tablespoons vegetable oil; 1 small Japanese eggplant, sliced into rounds; 4 ounces mixed mushrooms, cut into pieces (about 1 cup); 2 cloves garlic, chopped; 3/4 pound ground turkey; 1 bunch scallions, sliced; 1/4 cup fresh cilantro, roughly chopped; Sriracha or other Asian chile sauce, for serving (optional)