Slice the flank steak against the grain into thin, bite-sized strips and season with sea salt and black pepper.
In a small bowl, whisk together the coconut aminos, raw honey, toasted sesame oil, minced garlic, and grated fresh ginger to create the stir-fry sauce.
Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the beef strips to the pan in a single layer and sear for 2 minutes until browned, then remove the beef from the pan and set aside.
Add the broccoli florets to the same pan with a splash of water, cover with a lid, and steam for 3 minutes until tender-crisp and bright green.
Return the beef to the pan and pour the prepared sauce over the mixture, tossing constantly for 1-2 minutes until the sauce thickens and coats everything evenly.
Serve the stir-fry over the cooked brown rice and garnish with sesame seeds before serving.