Cook the noodles in a pot of boiling salted water until just tender. Drain.
Prepare the spaghetti sauce according to the package instructions, using the tomato paste listed in this recipe.
In a mixing bowl, add the egg, cottage cheese, and salt. Mix together.
Preheat your oven to 190° C (375° F), get out a 7x11 inch baking pan, and grease with butter or cooking spray.
Place ½ the drained noodles in the prepared baking pan.
Top that with ½ the spaghetti sauce.
Top that with ½ the cottage cheese mixture.
Top that with ½ Mozzarella cheese and sprinkle with ½ the Parmesan.
Repeat in the same order, ending with the Parmesan.
Bake for 30 minutes. Let rest for 15 minutes.
Serve and enjoy.