Chicken Tortilla Soup

2 large chicken breasts
2 Tb olive oil
1 small onion, chopped
1 cup chicken broth
1 can corn
1 can black beans
1 can diced tomatoes OR 1 small can tomato sauce if you don't like chunks of tomato
1/2 - 1 tsp minced garlic
1/4 tsp cumin
1/2 tsp chili powder
2 Tb Lime Juice
2 Tb cilantro, chopped
7-8 small corn tortillas cut into small slices
Salt and Pepper to taste

In a large pot cook chicken, onion, and garlic in olive oil. Add cumin, chili powder, salt and pepper. Then add chicken broth, corn, beans, tomatoes, lime juice and cilantro. Add most of tortilla strips but reserve some to broil in the oven to top soup with. Allow soup to simmer for about 10 minutes, the tortilla strips will thicken the soup. Top with shredded cheese, sour cream, cilantro and broiled tortilla strips.