Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper for easy cleanup.
In a small bowl, mix together the ranch seasoning, garlic powder, salt, and pepper.
In a large mixing bowl, add the chicken thighs. Drizzle with 2 tablespoons of olive oil, then sprinkle half of the ranch seasoning mixture over the chicken. Rub the seasoning all over the chicken to coat evenly.
In the same bowl, add the halved baby potatoes. Drizzle with the remaining olive oil and sprinkle the rest of the ranch seasoning mix, tossing to combine.
Arrange the seasoned chicken thighs on one side of the prepared baking sheet and the potatoes on the other, ensuring they have space to roast evenly.
Roast in the preheated oven for 25 minutes. After 25 minutes, add the broccoli florets to the sheet pan and toss everything lightly to coat with the juices.
Return the sheet pan to the oven and roast for an additional 15-20 minutes, or until the chicken reaches an internal temperature of 165°F (74°C) and the potatoes are tender and golden.
Once cooked, remove from the oven and let it rest for about 5 minutes before serving.
Garnish with freshly chopped parsley for a pop of color and extra flavor.
Notes
For best results, ensure the chicken is spaced out on the baking sheet for even cooking.