2 tablespoons cooking oil
1 onion, chopped
2 cloves garlic, minced
1 pound skinless chicken thighs (about 4), cut into thin strips
4 teaspoons chili powder
1 tablespoon ground cumin
2 teaspoons dried oregano
1 teaspoon salt
2 jalapeno peppers, seeds and ribs removed, chopped
1 1/2 cups canned crushed tomatoes with their juice
2 1/2 cups canned low-sodium chicken broth or homemade stock
1 2/3 cups drained and rinsed into beans (from one 15-ounce can)
1 2/3 cups drained and rinsed black beans (from one 15-ounce can)
1/2 teaspoon fresh-ground black pepper
1/3 cup chopped cilantro (optional)