Cook noodles according to package directions; drain, then set aside.
Meanwhile, in a large saucepan, combine broth, ginger, and soy sauce and bring to a simmer over medium heat.
Thinly slice pork, then add to broth along with asparagus. Stir to separate meat slices and cook until pork is no longer pink, 3 to 4 minutes. Stir in green onions and noodles. Serve with Sriracha.
*Look for Sriracha, an Asian red chili sauce, in your market's Asian foods aisle.
Note: Nutritional analysis is per serving.