Find recipes for Pastitsio and other Course recipes. Get all the best recipes at . Recipe directions: Cook macaroni according to package directions. Meanwhile, in a large skillet, cook beef and onion over medium heat until meat is no longer pink. Add garlic; cook 1 minute longer. Drain. Stir in the tomato sauce, 1/2 teaspoon salt, oregano, pepper and cinnamon if desired; heat through.