Made this the other night, loosely based on a recipe. Yummy!
Bake a pan of cornbread. Cut it into 1-2" cubes. Use them to mostly cover the bottom of a baking dish.
Mix together and pour over the top:
Diced cooked chicken
Chicken gravy or cream of chicken soup
Diced canned tomatoes
Assorted spices (cumin, garlic, cayenne powder, red pepper flakes, salt, oregano, in my case)
Grate a little cheese on top. Bake it until it's hot at 325-350 degrees.