In a large pot, place your lasagna noodles and fill with water and then salt it good. Cook until al dente.
In a large bowl combine ground beef and spaghetti sauce. Set aside
In another bowl, combine cottage cheese, egg, and Parmesan Cheese. Mix together and set aside.
To assemble the lasagna:
Place a scoop of sauce mixture on the bottom of your lasagna pan. Top with a few noodles (around 4 or 5). Top with 2 more scoops of meat sauce. Add a layer of the cottage cheese mixture and smooth out. Sprinkle with mozzarella cheese.
Repeat the layers until you run out of room. End with mozzarella cheese on top.
Bake at 350 degrees for about an hour and a half. If cheese is getting too brown, cover with foil.