Preheat the oven to 425°F (220°C). Line a baking sheet with parchment paper.
Cut the chicken breast into bite-sized pieces. In a bowl, combine the chicken with a pinch of salt and pepper.
In a separate shallow dish, mix the panko breadcrumbs and cornstarch. Lightly coat each chicken piece with this mixture for a crispy texture.
Place the coated chicken pieces on one side of the baking sheet.
In another bowl, toss the broccoli with olive oil, salt, and pepper. Spread the broccoli on the baking sheet, away from the chicken.
Bake in the preheated oven for 20-25 minutes, turning the chicken halfway through and ensuring broccoli is evenly roasted.
While baking, prepare the orange sauce by whisking together fresh orange juice, honey, minced garlic, ground ginger, and orange zest in a small saucepan. Bring to a gentle simmer until slightly thickened, about 3-4 minutes.
Once the chicken is crispy and the broccoli roasted, drizzle the warm orange sauce over the chicken pieces. Give everything a light toss to evenly coat.
Serve immediately, enjoying the vibrant mix of crispy, citrus-infused chicken with savory roasted broccoli.