This comforting baked pasta dish layers tender zucchini slices with rich tomato sauce and a blend of three cheeses. It uses fat-free cottage cheese and low-sodium tomato sauce for a lighter take on a classic Italian favorite. The melted mozzarella and Parmesan create a bubbly, golden crust over the soft noodles and savory vegetables. Serve this hearty casserole for a cozy weeknight dinner or a weekend family meal.