Spicy Asian Noodles With Coconut Sauce

Name: Spicy Asian Noodles With Coconut Sauce
Ingredients: 1 tablespoon vegetable oil; 2 shallots; peeled and sliced; 1-2 plump stalks of fresh lemongrass tender inner white bulb only, sliced crosswise; 2-3 cups shiitake mushrooms; sliced; 3-4 heads of bok choy; sliced lengthwise; 1 serrano chile; sliced; 1- 13.5-14 oz. can light coconut milk; 1 tablespoon mirin; 2-3 tablespoons low sodium soy sauce; Zest from one lime; red chili pepper flakes for additional heat; 8 oz. dried soba udon or brown rice noodles (use whatever you can find); 1 cup fresh cilantro leaves; torn; 1 cups fresh basil leaves; torn; green onions or scallions; diced; roasted sesame seeds; sriracha sauce; lime wedges