Brown the ground beef in a medium saucepan. Once the beef is brown, add the cooked bacon pieces.In a small bowl, whisk the ketchup, mustard, Worcestershire sauce, salt and pepper. Mix into the ground beef.Lay the tortilla flat and put desired toppings on. I put the cheese, Lettuce, tomato, and ground beef. Roll it up like a burrito.Place on a panini press or grill until the cheese is melted.