Brown beef in skillet; pour off fat. Stir in tomato sauce, onion, parsley, oregano, basil, 1/2 teaspoon salt and pepper. Simmer uncovered 10 minutes, stirring occasionally. Combine spinach with cottage cheese and remaining 1/4 teaspoon salt. Spoon spinach mixture around edge of baking dish [13x9]. Pour beef mixture into center. Cut each mozzarella slice into 3 lenght-wise strips. Arrange in lattice design over meat. Bake at 375 degrees for 20 minutes.