Southwest Chicken & Barley Soup

Southwest Chicken & Barley Soup
1 medium onion, chopped
1 garlic clove, minced
1 tablespoon oil
3 cups water
1 (15 1/4 ounce) can corn, drained
1 (15 ounce) can black beans, rinsed and drained
15 ounces tomato sauce
1 (14 1/2 ounce) can diced tomatoes
1 (14 1/2 ounce) can chicken broth
1/2 cup pearl barley, med
1 (4 ounce) can green chilies, chopped, drained
1 tablespoon chili powder
1/2-1 teaspoon cumin
3 cups cooked chicken, cubed
Saute onion and garlic in oil. Add the next 10 ingredients. Bring to a boil, reduce heat, cover and simmer 45 minute. Stir in chicken cook 15 minutes more.