"Never turn on your oven again...."
(3-lb.) whole chicken
kosher salt
freshly ground black pepper
lemon
sprigs rosemary
extra-virgin olive oil
medium potato, scrubbed and halved
chopped onion
stalk celery, cut into 3 pieces
carrot, quartered
cloves garlic, sliced
low-sodium chicken broth
freshly chopped parsley, for garnish