Chicken, Sausages and Potatoes

This is real easy, just put everything into a pan and into the oven for 90 minutes and it's done, great for a Sunday watching football.
8 or so chicken thighs
4 sausage links
500g (1/2 lb) fingerling potatoes
1 red onion
fresh rosemary about 4 good sprigs, more if you want
zest of lemon and juice of one lemon
olive oil
salt & pepper
4 carrots, cut in half

Preheat the oven to 200 C (400 F). Put the oil in the bottom of a roasting pan. Put the chicken into the pan and rub it with the olive oil, add salt and pepper. Add the sausages and the potatoes, and carrots into the pan, sprinkle the rosemary. Add the zest and juice of one lemon.
Cook for about 90 minutes, halfway through turn chicken pieces over.
Enjoy!