This is a stick to the ribs thick soup for those cold and clear days.
Take two sticks of celery, one carrot, one onion and a few mushrooms. Chop all the veg into decent sized chunks and fry them gently in a little oil till the onion goes translucent. Add 600ml/1pint of chicken stock to the pan, bring to the boil and simmer for ten minutes or so. During that time chop about a cupful of chicken meat into small cubes and fry in a little oil in a hot pan till the edges are going brown and crispy. Set aside. Remove the stock and veg from the heat and blitz to form a smooth but thick soup base. Add the chicken and any juices to the soup base and bring back to a light simmer then add a tin of mixed beans and continue to simmer till the beans are heated through - two or three minutes.