Christmas Breakfast Casserole

It's a little early, but I'm already dreaming about it. This is what my mom makes on Christmas morning. (You have to prepare it the night before, tho)

6 slices bread w/o crust and buttter one side (butter side down)
4 C cheese
1 (4 oz) can green chiles
Ham/Bacon, Sausage, whatever you want, cooked and chopped
6 eggs
2C milk
1 tsp Salt
1 tsp. Paperika
1 tsp Oregano
1/2 tsp Pepper
1/4 tsp. garlic powder
1/4 tsp dry mustard powder

Put bread butter side down in a casserole dish.
Layer Cheese, Green Chiles, Meat on bread.
Beat together the egg and the milk. Mix in seasonings.
Cover and chill casserole overnight.
Bake 325 for 50 min without a cover.
Let stand 10 min.