Boil, drain and rinse noodles in hot water. Brown meat well, add tomato sauce, worcestershire and salt. Mix cottage cheese, cream cheese, sour cream and onions. Melt butter. Grease 2- 2quart casseroles. Place 1/4 noodles in each casserole, pour a little melted butter over noodles. Add half cheese mixture to each casserole. Add remaining noodles, more butter and top with meat mixture. Bake at 350 degrees for 30-45 minutes.