Prep the broccoli: Cut broccoli into bite-size florets. Peel the stem and slice it thin to avoid waste.
Mince the garlic and grate the ginger. Slice the green onions, keeping white and green parts separate.
Make the sauce: In a small bowl, whisk together soy sauce or tamari, beef broth, rice vinegar, keto sweetener, and a pinch of red pepper flakes. Taste and adjust sweetness and salt.
If you want a thicker sauce, sprinkle in a tiny pinch of xanthan gum and whisk well.
Sear the beef: Heat a large skillet or wok over medium-high. Add a drizzle of avocado oil, then add ground beef. Season with salt and pepper.
Cook, breaking it into crumbles, until browned with crispy edges. Drain excess fat if needed, leaving about a tablespoon in the pan for flavor.
Add aromatics: Stir in the white parts of the green onions, garlic, and ginger. Cook 30–60 seconds until fragrant.
Don’t let the garlic burn.
Cook the broccoli: Add broccoli to the pan with a splash of water. Cover and steam 2–3 minutes until bright green and just tender. Uncover and let the water evaporate.
Sauce it up: Pour in the sauce.
Toss everything so the beef and broccoli are well coated. Simmer 1–2 minutes until the sauce slightly thickens and clings.
Finish and serve: Turn off the heat. Stir in a drizzle of sesame oil and the green parts of the onions.
Taste and adjust seasoning. Garnish with sesame seeds if you like. Serve as-is or over warm cauliflower rice.