For the lady who wanted pierogies. Here's my solution to a more involved original prep! It's delicious.
15 lasagna noodles 2 C. cottage cheese 1 egg 1/8 tsp. onion salt 1 C. cheddar cheese 2 C. mashed potatoes 1/4 tsp. salt 1/4 tsp. onion salt 1 C. margarine (scant) 1 C. chopped onion
Cook noodles; drain and towel dry. Mix cottage cheese, egg, and onion salt. Spread over a layer of noodles in a 9x13" pan. Cover with layer of noodles. Mix potatoes, salt, onion salt, pepper, and grated cheese. Spread over second layer of noodles. Top with third layer of noodles. Melt margarine and sauté onion. Spread over top layer of noodles. Bake 30 minutes at 350 degrees, covered. Let stand 10 minutes before cutting. Serve with sour cream.