1 4.37 lb chicken
1 stick of butter
zest of 2 lemons
2 lemons
handful of thyme
rosemary
salt and pepper

preheat to 450

rub chicken with salt, pepper, lemon halves, thyme. Mix softened butter, lemon zest, salt and pepper and rosemary. rub all over chicken. get into it.

Chop sweet potatoes rub in remaining better mixture. Cut a bunch of carrots and red onion, other root vegetables. 

Cook Chicken for 45min at 450. Then add sweet potatoes, cook for 20 more minutes, pull chicken and let rest. throw in carrots, onion and whatever else and cook for  10-20 min.