cheese (mozzarella and Parmesan, shredded not the kind in a can)
bread crumbs (we used crushed croutons)
Salt, Pepper, and garlic powder
Fry sausage and drain. Put tomatoes, peppers, onions and sausage in a bowl. Add salt, pepper, and garlic powder to taste. Mix in bowl. Slice squash. Put layer of squash in bottom of 9x13 dish. Next add a layer of mixture. Then layer of cheese. Repeat layering. Add bread crumbs to top and brown until cheese is melted. Bake at 375 degrees F.
We have made this with and without bread crumbs and it is good either way but I prefer bread crumbs.