While noodles are cooking, shave your beef with a mandolin into thin strips and set aside. Or you can pull apart the braised chicken from above or roll your favourite sausage meat into small balls.*
Chop up green onions, cilantro, and mint. Add to the soup bowl.
Add onions to the soup bowl.
Pour as much pho broth as you want into the bowl, then squeeze one or two slices of lime juice in, season with hot sauce, and enjoy!
If using sausage balls you will want to cook them for a few minutes in the broth prior to serving.