– 2 Tablespoons vegetable oil – 1 small yellow onion, chopped – 1 red bell pepper, chopped – 1 clove garlic, minced – 3 Tablespoons cornstarch – 6 cups low sodium chicken broth – 2 cups chopped or shredded cooked chicken – 4 corn tortillas, chopped into small piece – 3 Tablespoons fresh lime juice – 1 (14.5 ounce) can diced tomatoe – 1 can diced green chile – 3/4 teaspoon ground cumin – 1/2 teaspoon ground cayenne pepper (optional) – 1/2 teaspoon oregano – 3/4 teaspoon salt – 12 oz. mild cheddar cheese, shredded – Fresh cilantro, chopped, for garnish – Tortilla strips or chips, for garnish