I accidentally used a 1/2 cup of spaghetti sauce in the meat and it still turned out so good, moist and delicious! I used very lean ground beef, so it was probably a good thing to add extra sauce. I used Saltines instead of bread crumbs and we put ketchup on it when served. Next time I will add less parmesan cheese, since it was a little bit bitter for my taste buds. It's one of our new comfort foods.