DIRECTIONS. Preheat oven to 350°C. Put pasta in 9 by 13 dish and set aside. Mix milks and eggs well. Add the butter, sour cream and colby, Montery jack, sharp cheddar and velveeta cheeses to the pasta. Jul 22, 2015 · Get Pastitsio Recipe from Food Network. Deselect All. For the Tomato Meat Sauce: 3 tablespoons good olive oil. 1 1/2 cups chopped yellow onion (1 large) Directions. Preheat oven to 350°. In a large skillet, cook beef and onion over medium heat until meat is no longer pink. Add garlic; cook 1 minute longer. Cook the macaroni in a pan of salted boiling water 2 minutes short of the timing on the packet instructions, then drain in a colander and reserve a little of the cooking water. Heat the oil in a large heavy-based frying pan, add the marjoram or oregano and fry for a …