Cut the chicken breast into bite-sized cubes and season evenly with sea salt and black pepper.
Mince the garlic clove and finely grate the fresh ginger.
In a small glass bowl, whisk together the coconut aminos, honey, minced garlic, and grated ginger to create the teriyaki glaze.
Heat the toasted sesame oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken cubes to the skillet and sear until golden brown and cooked through, approximately 5 to 7 minutes.
Add the broccoli florets to the pan along with two tablespoons of water; cover with a lid for 2 minutes to steam the broccoli until it is tender-crisp and bright green.
Remove the lid and pour the prepared sauce over the chicken and broccoli.
Toss everything constantly for 1 to 2 minutes until the sauce thickens into a glossy glaze that coats every piece.
Transfer to a plate and garnish with sesame seeds before serving.