Use a 2 quart casserole dish, well buttered or sprayed with oil.

Layer macaroni (still hot) and cheese: a layer of macaroni, then a layer of cheese, etc., repeating layers until it reaches to about 1/2 inch from the top of the casserole dish.

Combine eggs, butter, salt and pepper in a medium bowl and stir until smooth; pour over macaroni and cheese layer. Sprinkle cheese over the top of pie.

Bake at 375°F for 15 minutes, or until cheese on top is light brown. Pie will continue cooking after removing from oven for an additional 5 minutes or so.