Preheat your oven to 425 degrees Farenheit. Set aside a casserole dish or 8x8 baking pan.

Bring a large pot of salted water to a boil. Add macaroni noodles and boil until just al dente, then drain and set aside. Don't overboil- they will cook more in the oven.

In a skillet over medium heat, melt butter. Add diced onions and cook about 3 minutes, until soft. Add the ground beef. Break up the beef and cook until browned through. Add salt, pepper, nutmeg and mix.

When meat is fully cooked, remove pan from heat. Toss with noodles and then transfer entire mixture to casserole dish.

In a small bowl or a large measuring cup, beat together eggs and milk until blended well. Pour over noodle & beef mixture.

Top with shredded cheese.

Bake for 30 minutes. Let sit about 5 minutes after removing from the oven, prior to cutting.