1 tablespoon extra-virgin olive oil
1 small onion, chopped
2 cloves garlic, minced
1 large jalapeno pepper (1/2 chopped and 1/2 sliced; remove seeds for less heat)
1 4-ounce can chopped green chiles, drained
1 teaspoon ground cumin
2 cups low-sodium chicken broth
2 cups shredded rotisserie chicken
2 15-ounce cans large white beans or pinto beans (1 undrained; 1 drained and rinsed)
1 cup frozen corn, thawed
1/2 cup chopped fresh cilantro
1 cup shredded monterey jack or white cheddar cheese
Sour cream and cornbread, for serving (optional)