Preheat the oven to 350 degrees.
Butter a 9x13 inch baking dish.
Layer half of the chiles flat on the bottom of the dish. Make sure to remove any seeds to keep the flavor mild.
Sprinkle half of the shredded cheese over the chiles.
Layer the remaining chiles over the cheese.
Blend the eggs, milk, and salt together and pour over the top of the chiles and cheese.
Top the casserole with the remaining cheese.
Cover with foil and bake at 350 degrees for 40 minutes.
Remove foil and bake for an additional 5 minutes until lightly browned.
Enjoy!
