Preheat oven to 350
line bottom of baking dish with a layer of enchilada sauce
add shredded chicken to pan
add corn and black beans
add 1 cup of enchilada sauce
add 1 cup of shredded cheddar cheese continue to mix well and simmer until cheese is melted
Spoon into the middle of flour tortilla and roll up
Place seam side down in baking dish
Top with remaining enchilada sauce and and remaining 1½ cups of shredded cheese
cover with foil and bake in oven until cheese is melted - around 10 min
Optional toppings: avocado, cilantro, scallions, sour cream, crumbled cortija cheese