01 - In a small bowl, combine mayonnaise, ketchup, mustard, diced pickles, vinegar, smoked paprika, and sugar. Mix until fully incorporated and refrigerate until ready to use.
02 - Divide the ground beef into 8 equal portions and gently roll each into a loose ball without overworking the meat.
03 - Set a large non-stick skillet or griddle over medium-high heat and allow it to come to temperature.
04 - Place 2 beef balls on the hot skillet per batch. Lay a flour tortilla over each ball and press firmly with a sturdy spatula until the beef spreads thin across the underside of the tortilla, with the beef side in direct contact with the pan.
05 - Sprinkle salt, pepper, and garlic powder evenly over the exposed beef. Cook for 2 minutes, pressing down occasionally, until the edges turn crisp and deeply browned.
06 - Flip each taco so the tortilla side contacts the pan. Immediately scatter shredded cheddar over the beef and cook for 1 additional minute until the tortilla is golden and the cheese is fully melted.
07 - Cook the remaining beef balls and tortillas in batches following the same technique.
08 - Top each taco with shredded lettuce, diced tomato, red onion, sliced dill pickles, and a generous drizzle of the reserved burger sauce.
09 - Plate the tacos right away while the tortillas are still crisp and the beef is hot.