Thinly slice the flank steak against the grain into bite-sized strips and season with sea salt and black pepper.
In a small bowl, whisk together the coconut aminos, toasted sesame oil, raw honey, and arrowroot powder 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 in a single layer and sear for 2 minutes per side until browned, then remove the beef from the pan and set aside.
In the same pan, add the broccoli florets and 2 tablespoons of water; cover and steam for 3 minutes until tender-crisp.
Remove the lid, add the minced garlic and grated fresh ginger, and sauté for 1 minute until fragrant.
Return the beef to the pan and pour the sauce over the mixture, tossing constantly for 1-2 minutes until the sauce thickens and coats everything evenly.
Garnish with sesame seeds and serve immediately.