In a greased 9×13 inch baking dish, layer the sliced potatoes first, followed by the ground beef mixture, green beans, and diced tomatoes. Drizzle with Worcestershire sauce and sprinkle with salt and pepper.
Cover the casserole with shredded cheddar cheese.
Cover the baking dish with aluminum foil and bake for 60 minutes.
Remove the foil and bake for another 10 minutes until the cheese is bubbly and golden.