2.Brown the ground beef. When it starts to release some juices, add the onion. Season with Worcestershire sauce and pepper. When the beef is nearly completely browned, add the spinach, and saute for a couple of minutes. Stir in the soups.
3.Transfer the beef mixture to a 9x13 inch baking dish. Top with a bit of shredded cheddar. Neatly layer the potato rounds over the top.
4.Bake for 50 minutes in the preheated oven, until the potato rounds are toasted.