Roasted Chicken with potatoes

1 whole chicken , giblets removed, legs tied together 2 cups butter , cut into pieces 5 carrots , cut in chunks (I use mini carrots instead) 5 zucchini ,[...]

1 (3 lb) chicken 3 tablespoons olive oil salt and pepper 2 medium potatoes , cut into 1/2 inch chunks (Yukon Gold) 3 medium carrots , cut into 1/2 inch chunks[...]

1 whole chicken , giblets removed, legs tied together 2 cups butter , cut into pieces 5 carrots , cut in chunks (I use mini carrots instead) 5 zucchini ,[...]