1 lb extra lean ground beef
Combine beef, egg, bread crumbs, tomato paste, oregano, and pepper. Sautee onion in oil. Add to the meat mixture. Turn out on a sheet of aluminum foil; flatten with fingers into a 6x9-inch rectangle about 1/2-inch thick.
Place ham slices on meat, keeping them about 1 inch from edge. Sprinkle grated WSU Viking Cheese on ham. Use the foil to fold meat mixture over ham and cheese, being careful to close all openings.
Turn loaf from foil into a greased 3-1/2 x 7-1/2 inch loaf pan. Bake for 1 hour at 325ºF. Drain off liquid before serving.