Pierogi Casserole
["1/2 lb. lasagna noodles, cooked", "3/4 lb. Cheddar cheese, grated", "2 1/2 sticks butter", "2 onions, finely chopped", "10 to 12 potatoes, boiled", "salt and pepper"]
["Cook", "lasagna", "according", "to directions.", "Mash potatoes. Add cheese", "to potatoes and beat well.", "Saute onions in butter until soft.", "Add", "1/2", "of onion mixture to potatoes.", "Salt and pepper. Generously", "butter 13 x 9 x 2-inch baking dish.", "Place a", "layer of noodles, then a layer of potatoes.", "Repeat, ending with noodles.", "Pour", "butter", "and", "onions over all.", "Cover with foil and bake at 350\u00b0 for 20 to 25 minutes."]
["lasagna noodles", "Cheddar cheese", "butter", "onions", "potatoes", "salt"]