Remove skin and fat from thin slices of cold roast lamb, and sprinkle with salt and pepper. Cover bottom of a buttered baking-dish with buttered cracker crumbs; cover crumbs with meat, cover meat with boiled macaroni, and add another layer of meat and macaroni. Pour over Tomato Sauce, and cover with buttered cracker crumbs. Bake in hot oven until crumbs are brown. Cold boiled rice may be used in place of macaroni.