Hamburger Sour Cream Casserole 4 ounces egg noodles 1 (8 ounce) can tomato sauce 1 tablespoon flour 1 cup cottage cheese 1/2 cup sour cream 1 teaspoon salt 1 pound ground beef Preheat oven to 350 degrees F. Cook noodles according to package directions. Brown meat; drain grease; add tomato sauce and flour. Simmer until thickened. Combine sour cream, cottage cheese and salt. Place cooked noodles in the bottom of a 1-quart casserole. Layer with the sour cream mixture, then top with the hamburger mixture. Cover and bake for 30 minutes.