Combine beef, Worcestershire sauce, salt and pepper in a bowl. Separate into 4 parts and flatten out into thin patties. Place some Velveeta cheese (we loaded the cheese on) on top of 2 of the patties and then cover with the 2 remaining patties. Press the edges of the patties to form a tight seal (you don't want the cheese oozing out before you bite into it). Grill or cook in a pan for a few minutes on each side-- just like you would grill/cook any other burger. AGAIN, be very careful grilling.. you don't want the cheese to start coming out. When burger is done, add grilled pineapple and cover with Swiss cheese. When cheese starts melting, add ham. Create your burger by placing the burger on the bun, adding lettuce and any other toppings/condiments you like, and top with remaining bun.