assorted shredded cheese or kefalotyri cheese • No. 3 pasta (about 24 oz. total) • Butter • lbs. (750 grams) ground beef • large onion, finely chopped • Olive oil • fresh tomatoes, finely chopped • tomato sauce (use any plain tomato sauce, about 14 oz./400 grams) • Salt • Pepper • Nutmeg • water (480 ml) •