Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Peel and cube the sweet potato into 1/2-inch pieces, then toss with half of the olive oil, sea salt, and black pepper on the prepared baking sheet.
Roast the sweet potatoes for 20 to 25 minutes, tossing halfway through, until they are tender and caramelized on the edges.
While the potatoes roast, cut the chicken breast into bite-sized cubes and toss them in a small bowl with the cornstarch until evenly coated.
Heat the remaining olive oil in a non-stick skillet over medium-high heat and sear the chicken until golden brown and cooked through, about 6 to 8 minutes.
In a small jar, whisk together the honey, tamari, and minced garlic, then pour the mixture over the chicken in the skillet.
Simmer the sauce for 2 minutes until it thickens into a glossy glaze that coats the chicken perfectly.
Steam the broccoli florets for 3 to 5 minutes until vibrant green and tender-crisp.
Plate the honey-garlic chicken alongside the roasted sweet potatoes and steamed broccoli for a balanced, clean-eating meal.