Prep the smash taco: Place the ground beef directly onto the tortilla and press it evenly across the surface so the meat covers most of the tortilla. Top the beef with thin slices of white onion and season with salt and pepper.
Cook: Heat a skillet over medium heat. Place the tortilla meat side down onto the hot skillet and cook for 8–10 minutes, allowing the beef to fully cook and develop a nice crust. Flip the taco so the tortilla side is down.
Add cheese: Add cheese over the cooked beef and allow the tortilla to cook for another 2–3 minutes until golden brown and slightly crispy and the cheese melts. Remove from the skillet.
Add toppings: Top with turkey bacon, pickles, sliced tomato, shredded lettuce, and a drizzle of Big Mac yogurt sauce. Fold and enjoy.
Big Mac Yogurt Sauce: Mix everything together in a small bowl until smooth. Taste and adjust seasoning if needed.
