Cut the meat into 5 portions. Heat the butter in a saucepan and brown the meat. Add onion and garlic and saute until soft. Add tomato juice, tomato paste, salt, pepper, and enough hot water to cover the meat. Simmer covered, over a very low heat, until meat is tender and sauce is thick.
Boil macaroni or spaghetti in boinling salted water. Drain. Put half the macaroni into a buttered baking dish (youvetsi), cover with the meat, add the remaining macaroni, and spread the tomato sauce on top. Sprinkle with grated cheese and bake in a moderate oven for about 15 minutes.