In a small bowl, stir together the olive oil, lemon juice, minced garlic, dried oregano, dried thyme, Dijon mustard, kosher salt, and freshly ground black pepper. This marinade will infuse the chicken with Mediterranean flavors, balancing tangy, savory, and herbal notes.
Add the chicken thighs to a large bowl and pour the marinade over them. Toss to ensure the chicken is fully coated. Cover the bowl and place it in the refrigerator to marinate for 1 to 2 hours (and up to 8 hours) for the best flavor. The longer the chicken marinates, the more the flavors will infuse into the meat.
Preheat your oven to 350°F (180°C). Transfer the marinated chicken thighs to a baking dish and pour any remaining marinade over the chicken. This helps keep the chicken moist and enhances the flavor during baking.
Bake the chicken in the preheated oven for 40 to 45 minutes, or until the chicken is fully cooked and registers 175°F (80°C) on an instant-read thermometer. For extra crispy skin, baste the chicken a few times while cooking and, if desired, turn on the top oven broiler during the last 2 to 3 minutes of cooking.
Once the chicken is cooked through and golden brown, remove it from the oven. For a nice touch, garnish with lemon slices before serving, especially if you’re preparing this dish for a dinner party. The result will be a visually appealing and flavorful dish ready to serve!