Make the Special Sauce by whisking all sauce ingredients in a bowl until smooth. Set aside.
Cook the ground beef in a skillet over medium-high heat until browned, breaking it apart. Season with salt and pepper. Drain excess fat.
Assemble salads by creating a base of chopped lettuce in bowls or on plates.
Top the lettuce with the warm cooked ground beef.
Drizzle generously with the prepared special sauce.
Scatter the torn cheese, chopped pickles, and diced onion over the top.
Finish with a sprinkle of toasted sesame seeds.
Serve immediately and toss to combine all ingredients before eating.