Pat the chicken breast dry with paper towels and cut into bite-sized pieces.
In a medium bowl, toss the chicken with arrowroot powder, sea salt, and black pepper until each piece is evenly coated.
Heat the avocado oil in a large skillet over medium-high heat until shimmering.
Add the chicken bites to the skillet in a single layer, cooking for 3-4 minutes per side until golden brown and cooked through.
While the chicken cooks, whisk together the honey, tamari, minced garlic, and grated ginger in a small bowl.
Reduce the skillet heat to medium-low and pour the sauce over the chicken bites.
Stir the chicken constantly for 1-2 minutes until the glaze thickens and becomes glossy, coating every piece.
Serve the crispy chicken bites immediately over steamed broccoli florets and garnish with sesame seeds.