"Chicken Enchilada Casserole from Delish.com will feed a crowd...."
extra-virgin olive oil
medium onion, chopped
bell pepper, chopped
cloves garlic, minced
(15.5-oz.) can black beans, rinsed and drained
(15.25-oz.) can corn, drained
cooked, shredded chicken
(4.5-oz.) can diced green chilis
(10-oz.) cans enchilada sauce
corn tortillas
shredded cheddar
shredded Monterey jack
Sour cream, for garnish
Freshly chopped cilantro, for garnish
Diced avocado, for garnish