In a small bowl, combine beef broth and cornstarch to make a slurry. Add the slurry to the pan, stirring constantly.
You could also use shredded or leftover beef or pork (great way to use leftovers). Just start with step 2.
You can use 2 teaspoons of dried and ground ginger instead.
You can use siracha instead.
This meal freezes great. Thaw and reheat or reheat from frozen with a little bit of water.