2 tablespoons olive oil
8 ounces skinned and boned chicken
    breast halves, 1/2-inch chunks
1/4 cup finely diced onion
2 garlic cloves, minced 
1 teaspoon ground cumin
1/2 teaspoon chili powder
1/8 teaspoon ground red pepper
1 (14 1/2 ounce) can chicken broth
1 can black beans, drained and rinsed
1 can Mexican-style stewed tomatoes
3 (6-inch) corn tortillas, halved
    and cut into 1/2-inch wide strips
2 tablespoons chopped cilantro
6 tablespoons plain low-fat yogurt

Preheat oven to 450 degrees F.

Heat oil in a heavy Dutch oven over medium heat. Add chicken, and cook for 3 to 4 minutes, stirring frequently, until opaque. Stir in onion, garlic, cumin, salt, chili powder and red pepper. Cook for 1 to 2 minutes, stirring frequently, until garlic and spices are fragrant. Stir in broth, undrained corn, drained black beans and stewed tomatoes. Increase heat to high and bring to a boil. Reduce heat, cover and simmer for 15 minutes.

Meanwhile, spread tortilla strips in a single layer on a baking sheet. Bake for 5 minutes, stirring once, until crisp and lightly browned. Stir cilantro into soup and ladle soup into bowls. Top servings with tortilla strips and a tablespoon of yogurt.

Makes 6 servings.