In large bowl, combine cottage cheese, cheddar cheese, sour cream, onions, and salt. Stir in noodles and mix well. Turn into greased 8-cup casserole or baking dish. Sprinkle with Parmesan cheese and paprika. Bake in 350 oven for 25-40 minutes or until sauce bubbles. Yields 8 servings.
I usually put in two casserole dishes and freeze one for another day. To reheat 1 serving (1 C) in microwave, use full power for 90 seconds.