Not sure why this is called a casserole since it's really just a bunch of tacos. Maybe because they touch in the pan? But regardless of the name the kids and adults love it equally.
Baking the hard shell tacos seems to really bring out the flavor in the shells. And who doesn't like melted cheese? We'll sometimes use enchilada sauce instead of salsa and tomatoes. It all just depends on what the mystery pantry has on it's shelves.