Grease a 2 quart baking dish. Add the stewed tomatoes, chili sauce and olives to meat mixture. Let it heat through. By now, macaroni should be cooked and drained. Pour half meat mixture into the baking dish, cover with half the macaroni and sprinkle with half the cheese. Repeat the layers and dot with a little butter if desired. Bake for 15 minutes. Serves 6.