Preheat the oven to 375°F. Trim any excess fat from the chicken thighs and pat them dry. Season both sides lightly with salt and pepper.
In a medium bowl, whisk together the Dijon mustard, honey, olive oil, garlic, oregano, smoked paprika, and pepper until smooth.
Coat each chicken thigh thoroughly with the marinade and arrange them in a baking dish, leaving a bit of space between each piece.
Bake for 40 minutes, or until the internal temperature reaches 165°F and the tops are golden.
Remove from the oven, cover with foil, and let rest for 5 to 7 minutes before serving.
Garnish with fresh herbs or serve alongside vegetables or salad for a complete meal.