Pat the chicken breast dry with a paper towel and cut into bite-sized cubes.
In a medium bowl, toss the chicken cubes with cornstarch, sea salt, and black pepper until evenly coated.
Heat the olive oil in a large non-stick skillet over medium-high heat and sear the chicken until golden and crispy on all sides.
While the chicken cooks, steam the broccoli florets in a steamer basket for 4-5 minutes until tender-crisp and bright green.
In a small jar, whisk together the honey, tamari, and minced garlic.
Reduce the skillet heat to medium, pour the honey-garlic sauce over the chicken, and simmer for 2 minutes until the sauce thickens into a glossy glaze.
Divide the cooked jasmine rice and steamed broccoli into a bowl, top with the glazed chicken, and garnish with sesame seeds.