Preheat your oven to 400 F (200 C).
On a large baking sheet, toss the diced potatoes with olive oil, salt, and pepper. Spread them into an even layer. (Note 7)
3-4 medium potatoes, 2 tablespoons olive oil
In a small bowl, combine the lemon zest, rosemary, thyme, salt, and pepper.
Zest of 1 medium lemon, 1 tablespoon fresh rosemary, 1 tablespoon fresh thyme, Salt and pepper to taste, 4 bone-in, skin-on chicken thighs
Rub the herb mixture all over the chicken thighs. If you have any leftover seasoning, toss it with the potatoes. Arrange the seasoned chicken thighs on the baking sheet alongside the potatoes. (Note 8)
Roast in the preheated oven for 25 to 30 minutes, or until the chicken is fully cooked (internal temperature of 165°F) and the potatoes are golden and crispy. (Note 9)
While the chicken is roasting, whisk together Dijon mustard, honey, and 1 tablespoon of olive oil in a small bowl. (Note 10)
2 tablespoons Dijon mustard, 2 tablespoons honey, 1 tablespoon olive oil
Drizzle the honey mustard mixture over the chicken before serving.