Pierogi Casserole - cooking recipe

Ingredients

1 lb. pasta
1 lb. American cooper cheese
1 medium onion
2 sticks butter
3 c. mashed potatoes

Preparation

Saute butter and onions.
Layer pasta, cheese and mashed potatoes, then repeat layers, adding small amount of butter between layers.
Bake at 350\u00b0 for 25 minutes.