Chile relleno has to be one of the most well-loved mexican dishes in existence. Because whats not to love about a pepper thats stuffed with ooey-gooey cheese, coated in an eggy batter and then fried? Theres just not a lot to argue with there, which is why weve taken the very same combination and transformed it into a casserole. You get all of the same flavors but you dont have to stuff or fry a thing