Preheat oven to 350°F.

Thoroughly drain @frozen spinach{2%10-oz pkgs}. Mix together spinach, @cottage cheese{32%oz}, and @eggs{3}. Set aside.

Set aside 8oz of @mozzarella{20%oz}. In a #large pan{}, layer ingredients (3-4 layers) in the following order: @spaghetti sauce{32%oz} and @tomato sauce{3%8-oz cans}, @lasagna noodles{1%1-lb box}, spinach mixture{}, and @mozzarella{20%oz} and @cheddar cheese{10%oz}.

Finish off top with reserved tomato sauce and mozzarella.

Bake for ~{45%minutes}; let stand for ~{15%minutes}.