Heat 1 tablespoon of avocado oil in a large skillet over medium heat. Add the cauliflower rice and cook for 5 to 7 minutes until it softens slightly. Remove it from the skillet and set aside.
Add the remaining tablespoon of avocado oil to the same skillet. Place the sliced beef in a single layer and cook for 3 to 4 minutes until browned. Remove the beef and set it aside.
Add the garlic and ginger to the skillet. Stir for 30 seconds, then add the broccoli florets. Cook for 3 minutes until the broccoli turns bright green.
In a small bowl, whisk together the soy sauce, beef broth, and cornstarch. Pour the mixture into the skillet with the broccoli.
Return the beef to the skillet. Stir everything together and cook for 2 more minutes until the sauce thickens and coats the ingredients.
Spoon the cauliflower rice onto plates. Top with the beef and broccoli mixture. Finish with sliced green onions and sesame seeds.