OK, so I'm a little late with this one.
One of our favorite Christmas Recipes is "Greek Macaroni". My daughters insist that I make this every year, and it is definitely one of the easiest side dishes.
When I was growing up, every year we would travel to Uncle Dick and Aunt Mary's for Christmas Day dinner. They would open their home to several relatives. Every year there was always a neighbor or two, or coworker, or simply a friend who didn't have other plans and would be invited as well. Aunt Mary was an excellent cook. Every year she would make a lamb roast - nobody could equal her roast! And she would make Greek Macaroni. I'm not sure what the real name for it was, but since it was her recipe and she was Greek, that's what everyone called it.
The recipe is:
1 box of penne pasta
1 stick of butter
Grated Parmesan/Romano cheese.
Cook the pasta according to package directions. Drain well.
Melt the butter.
Layer in a large casserole dish - a layer of pasta, sprinkle on a layer of cheese, drizzle with butter, repeat. We would usually end up with 3 sets of layers. Let set for a few minutes, then serve.
I have used different shapes of pasta but find penne the best. As I have gotten more health conscious, I have switched to whole-grain pasta, light butter and low fat cheese. It is still delicious!.
Another trick is to chop up leftover noodles and mix with scrambled eggs the next morning for a cheesy egg dish.