In a small bowl, mix together the honey and the mustard. Set aside.
On an olive oil sprayed baking sheet, place the chicken breasts. Sprinkle salt and pepper on the chicken. Cover the chicken with the honey mustard sauce you made earlier. Bake for 20-25 minutes or until the chicken is cooked through.
Continue to coat the chicken with the honey mustard mixture as the chicken cooks. Some of it will run off of the chicken and you can easily use a spoon to add it back to the top of the breasts.