Lazy Pierogi Casserole

12 regular lasagna noodles
6 cups potatoes, diced
2 cups bakers cottage cheese
1 egg
1 medium onion, diced
5 Tablespoon butter
1 ½ cups shredded cheddar cheese

Directions

1. Cook potatoes and noodles separately. Drain and set aside.
2. Preheat oven to 350 degrees F. 
3. Grease a 9 x 13 inch pan.
4. In a medium size frying pan, heat 2 tablespoon butter and sauté the onions until they are transparent.
5. Mash the potatoes, Add cottage cheese, egg, cooked onions and 3 tablespoon butter, mix together well.
6. Layer noodles alternately with potato mixture. Sprinkle cheese over top.
7. Cover with foil and bake for 15 minutes. 
8. Remove foil and bake an additional 15 minutes.
9. Let stand for 10 minutes before cutting into squares to serve.