01 - 
                In a skillet over medium-high heat, cook the ground beef, breaking it into small pieces with a spoon until evenly browned. Season with salt and freshly ground black pepper, then transfer to a dish and keep warm.
              
              
              
                02 - 
                In a separate pan, cook the bacon slices until crisp. Transfer to paper towels to drain excess fat before crumbling into small pieces.
              
              
              
                03 - 
                In a bowl, whisk together mayonnaise, ketchup, and yellow mustard until fully blended and smooth. Set aside.
              
              
              
                04 - 
                Heat the flour tortillas individually in a dry skillet for 20–30 seconds per side until soft and pliable.
              
              
              
                05 - 
                Arrange each tortilla on a flat surface. Down the centre, add a portion of cooked ground beef, crumbled bacon, shredded cheddar cheese, shredded mozzarella cheese, sautéed onion, lettuce leaves, and tomato slices.
              
              
              
                06 - 
                Drizzle creamy cheese sauce and the prepared burger sauce evenly over the layered fillings.
              
              
              
                07 - 
                Fold in the sides of each tortilla, then roll tightly to enclose the filling. Serve warm, garnished with additional bacon crumbles and cheese sauce if desired.