In a medium pot, combine the beef bone broth, star anise, cinnamon stick, and sliced ginger.
Bring the broth to a boil, then reduce the heat and simmer for 10 minutes to allow the aromatics to infuse.
While the broth simmers, cook the rice noodles in a separate pot of boiling water according to package directions, then drain and set aside.
Remove the star anise, cinnamon stick, and ginger from the broth using a slotted spoon and discard.
Stir the fish sauce and black pepper into the hot broth.
Place the cooked noodles in a large serving bowl and arrange the raw, thinly sliced beef sirloin on top.
Pour the boiling hot broth directly over the beef slices, which will cook them instantly to a tender medium-rare.
Garnish the soup with bean sprouts, cilantro, basil, and sliced green onion.
Serve immediately with a fresh lime wedge to squeeze over the top.