Crockpot White Chicken Chili

I stumbled upon this recipe while attending a conference on homeschooling the Charlotte Mason way, hosted by a friend.  She served this with lots of other yummy treats.  This is now a staple in our house.

2 chopped onions
2 cloves garlic, minced
1 tbls oil
2 - 4 oz cans green chilies, diced
3 c cubed, cooked chicken
3 - 15 oz cans great northern beans
1 red pepper, diced
2 tsp cumin
1 1/2 tsp oregano
1/4 tsp cayenne pepper
1/2 tsp salt
3 - 15 oz cans chicken broth (or equivalent with boullion cubes and water)
16 oz frozen corn

1. Saute onions and garlic in oil in skillet.  Add chilies, cumin, oregano, pepper and salt.  Saute 2 minutes.  Transfer to crockpot.  Add all ingredients.  Cook on low 4-8 hours.  Serve topped with sour cream and cheese.