White Bean Chicken Soup

2 Tbsp olive oil
1 onion, chopped
1 clove garlic, minced
3 (14.5 oz) cans chicken broth
1 (10 oz) can green enchilada sauce
1 (4 oz) can diced green chiles
1 (14.5 oz) can diced tomatoes
1 (15 oz) can white beans
1/2 tsp oregano
1/4 tsp ground cumin
1 (15 oz) can corn
salt to taste
ground pepper to taste

Heat oil, and add onion.  Cook until tender (about 5 minutes) then add garlic.  Cook for 1 minute.  Add remaining ingredients.  Bring to a boil, then simmer for 20 - 30 minutes.