Preheat the roaster to 350°F
Remove the chicken from the packaging
Pat the chicken dry with paper towels
Remove the giblets if present
Season the chicken inside and out with salt, pepper, and any desired spices
Place the chicken breast-side up on the roasting rack
Add onions, carrots, or celery to the roaster if desired
Cover the roaster with the lid
Roast until the internal temperature reaches 165°F in the thickest part of the thigh
Check the temperature with a meat thermometer
Remove the chicken from the roaster
Let the chicken rest for 10 to 15 minutes
Carve and serve