Slice the flank steak against the grain into thin, bite-sized strips for maximum tenderness.
In a small glass bowl, whisk together the coconut aminos, raw honey, minced ginger, and minced garlic to create the stir-fry sauce.
Heat the toasted sesame oil in a large skillet or wok over medium-high heat until shimmering.
Add the beef strips to the pan in a single layer, seasoning with sea salt and black pepper, and sear for 2 minutes until browned.
Remove the beef from the pan and set aside on a plate.
Add the broccoli florets and sliced red bell pepper to the same pan with two tablespoons of water; cover with a lid to steam for 3 minutes until tender-crisp.
Remove the lid and return the beef to the pan, pouring the prepared sauce over the meat and vegetables.
Toss everything together for 1 minute until the sauce thickens and coats the ingredients evenly.
Garnish with sesame seeds and serve immediately.