Pierogi Casserole - cooking recipe

Ingredients

10 to 12 potatoes, boiled and mashed
3/4 lb. Cheddar cheese, grated
2 1/2 sticks butter or margarine
2 onions, finely diced
1 lb. lasagna noodles, cooked

Preparation

Cook lasagna according to package directions.
Mash potatoes. Add cheese to potatoes and beat with hand mixer.
Saute onions in margarine until soft.
Add 1/3 of onion and margarine to potato mixture.
Salt to taste.