Thinly slice the flank steak against the grain into bite-sized strips.
In a small bowl, whisk together the coconut aminos, toasted sesame oil, raw honey, arrowroot powder, and water to create the stir-fry glaze.
Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the steak strips to the pan in a single layer, seasoning with sea salt and black pepper; sear for 2 minutes until browned, then remove and set aside.
In the same pan, add the broccoli florets with a splash of water, covering for 2 minutes to steam-sauté until tender-crisp.
Stir in the minced garlic and grated ginger, cooking for 30 seconds until fragrant.
Return the beef to the pan and pour the sauce over the mixture, tossing constantly for 1 minute until the glaze is thick and glossy.
Garnish with sesame seeds and serve immediately.