American Pierogie... melts in the mouth and lands on the thighs.

This recipe is not healthy. Not one bit. It doesn't contain much in the way of nutritional value either but we're Americans and we don't tend to care much do we?

All I can say is this is super yum and can feed an army or be used as a perfect and easily-transportable pot luck dish.

less than 1 box elbow macaroni, cooked (3/4 lb. or so)
1.5 large onions, diced finely
3 sticks butter or margarine (I used 2 marg, 1 butter)
Roughly 1/2 lb American cheese, sliced
6 small potatoes, cooked and mashed (I used Ziploc steamers to cook)

In ungreased casserole, layer macaroni, potatoes, sliced cheese.
Repeat.
Pour butter/onion mixture on top and bake at 375 for 30 minutes.

Lessons:
This will nearly overflow your casserole dish
Chopped onions still burn your eyes when using a Cuisinart
Cuisinarts on "high" will turn onions to almost-liquid