Chicken with asparagus

4 tablespoons extra virgin olive oil 1 large onion , diced 2 stalks celery , diced 1 large carrot , peeled and diced 3/4 cup rice , uncooked 12 cups chicken[...]

1 (3 lb) whole chickens 12 medium red potatoes, trimmed around center 12 asparagus spears , trimmed, halved crosswise 3 carrots , cut into sticks olive oil[...]