White Chili with broth

6 white corn tortillas 1 tablespoon olive oil 3/4 lb boneless skinless chicken breast , cut into 3/4-inch chunks 2 red bell peppers , seeded and diced 1 onion[...]

3 (15 ounce) cans great northern beans 1 red pepper, chopped 1 green pepper , chopped 1 medium onion , chopped 1 (4 ounce) can green chilies 2 garlic cloves ,[...]