01 - Preheat a large cast iron skillet or griddle over medium-high heat until hot.
02 - Divide ground beef evenly into 8 balls, about 2 ounces each.
03 - Place a tortilla on the work surface and center a beef ball on each. Using your hand or a spatula, press the beef to cover most of the tortilla in an even layer.
04 - Place the tortilla with attached beef, meat-side down, onto the hot skillet. Using a flat spatula, press the beef firmly to form a thin patty. Sprinkle a pinch of salt and black pepper over the beef.
05 - Cook for 2 to 3 minutes or until beef edges are deeply browned and crisp. Flip so the tortilla is now facing the skillet and top the cooked beef with half a slice of cheddar cheese.
06 - Let the tortilla toast and cheese melt for about 1 minute, adjusting butter in the pan if desired. Remove to a plate and repeat with remaining patties.
07 - Top each taco with shredded lettuce, sliced onion, tomato, pickles, and a drizzle of burger sauce, ketchup, or mustard. Fold and serve at once for best texture.