Steps
1. Preheat the oven to 375°F (190°C).
2. In a small bowl, mix together the Dijon mustard, honey, olive oil, salt, and pepper.
3. Place the chicken breast in a baking dish and brush the honey mustard mixture evenly over it.
4. Bake in the preheated oven for about 25-30 minutes, or until the chicken is cooked through and juices run clear.
5. Remove from the oven and let it rest for a few minutes before slicing.
6. Garnish with fresh parsley if desired, and serve warm.