Mix ground meat, stuffing mixes, 1 can spaghetti sauce, chopped onions, parmesan cheese, eggs, Worcestershire sauce, basil, oregano, dill, tarragon, diced tomatoes with green chilies, horseradish, garlic pepper, and tomato sauce. Put half of mixture into greased roasting pan. Combine zucchini squash, mushrooms, olives and half of mozzarella cheese into a mixture and place on top of meat mixture. Place other half of reserved meat mixture on top of stuffing-filled bottom and seal edges. Add remainder of shredded mozzarella cheese and second can of spaghetti sauce to top and bake in 350 degree oven for about 1 1/2 hour, or until done. Add extra mozzarella cheese and sliced olives to top of loaf before serving!