Spray the slow cooker with cooking spray. I use a 6-quart slow cooker, and the chicken and vegetables fit perfectly. Rub the chicken with olive oil. Combine the seasonings in a small bowl, then sprinkle them over the chicken. I like to tuck the chicken wings beneath the chicken so they don't burn on the edges of the slow cooker.
4 to 5 pounds roasting chicken, 2 tablespoons olive oil, 1 teaspoon kosher salt, 1 teaspoon garlic powder, 1 teaspoon onion powder, 1/2 teaspoon pepper
Place the cut-up vegetables into the bottom of the slow cooker. Place the chicken on top. Cook on low for 4 to 6 hours or until an instant-read thermometer reads 165 degrees Fahrenheit and the juices don’t run pink. 1 pound red potatoes, 2 medium carrots, 1 medium yellow onion
Line a rimmed baking sheet with aluminum foil. Place the chicken on it, and place it under the broiler set on low for 5 to 10 minutes or until the chicken is golden brown. Be sure to watch it closely so the chicken doesn’t burn.
Tent the chicken with foil and let it rest for 10 minutes before slicing.
If the vegetables aren’t done with the chicken is, when you remove the chicken from the slow cooker, return the lid, and then turn the slow cooker to high, and continue cooking the vegetables until they are soft.