White Soup

1 liter (4 cups) chicken stock
1 can cream of chicken soup
1 medium white onion, diced
1 rotisserie chicken, shredded into thick chunks
2 cans cannellini (white) beans, rinsed and drained
salt and pepper, to taste
white cheddar or pepper jack cheese, shredded

Bring the chicken stock and cream of chicken soup to a boil, stirring periodically until smooth.  Add the diced onion and simmer until cooked through.  Add the chicken and beans; heat through.  Salt and pepper to taste before topping with cheese.