Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper to prevent sticking.
Wash and dice the Yukon Gold potato into small 1/2-inch cubes to ensure they get crispy and cook through quickly.
In a small bowl, whisk together the olive oil, sea salt, black pepper, rosemary, garlic powder, and onion powder.
Place the potato cubes on one side of the baking sheet and toss with half of the herb oil mixture.
Roast the potatoes for 10 minutes before adding the chicken to the pan.
While potatoes roast, slice the chicken breast into 1-inch thick strips and toss with the remaining herb oil.
Move the potatoes to one side and add the chicken strips to the other side of the pan, ensuring they are not crowded.
Roast for another 15-18 minutes until the chicken reaches an internal temperature of 165°F and the potatoes are golden brown.
While the chicken finishes, steam the broccoli florets in a steamer basket for 4-5 minutes until tender-crisp and bright green.
Plate the crispy chicken and potatoes alongside the steamed broccoli, garnishing with fresh parsley for a pop of flavor.