Instructions. Preheat oven to F. Lightly oil a baking sheet. In a small bowl combine the breadcrumbs, oil, salt, pepper and garlic powder. Set aside. Put the chicken breasts on the prepared baking sheet. Bake until chicken is F according to an instant read thermometer, minutes. Oct 20, - Directions: Heat oven to F. On an oiled baking pan, place breasts in a single layer. Overlapping the breasts may lead to uneven cooking. Season with salt and pepper. Bake for 30 to 40 minutes or until internal temperature is degrees Fahrenheit.