Preheat your oven to 425°F (220°C). To facilitate an easy cleanup, line a large baking sheet with parchment paper.
In a small mixing bowl, whisk together the olive oil, minced garlic, dried oregano, dried thyme, paprika, salt, and black pepper to create a flavorful marinade.
In a spacious mixing bowl, place the chicken thighs and pour half of the marinade over them. Massage the marinade into the chicken, ensuring every piece is well-coated. Let the chicken marinate for at least 15 minutes, or up to 2 hours in the refrigerator for a more intense flavor infusion.
While the chicken is marinating, prepare your vegetables. In a separate bowl, combine the halved baby potatoes, halved cherry tomatoes, and red onion wedges. Drizzle the remaining marinade over the vegetable mixture and toss well to ensure every piece is coated evenly.
On the prepared baking sheet, arrange the marinated chicken thighs on one side. On the other side, spread out the herb-coated vegetables, ensuring they have enough space to roast effectively and evenly.
Place the baking sheet in the preheated oven and roast for 30-35 minutes. The chicken should reach an internal temperature of 165°F (74°C), and the potatoes should be tender and have a lovely golden color.
Once done cooking, remove the baking sheet from the oven and allow the dish to rest for a few minutes before serving.
Before serving, sprinkle freshly chopped parsley over the chicken and vegetables for a burst of color and flavor.
Notes
Serve directly from the baking sheet for a rustic look, or transfer to a platter. Add lemon wedges for garnish.