01 - Combine sliced beef with soy sauce, olive oil, garlic powder, and black pepper in a bowl. Mix well and let it marinate for 10 minutes.
02 - Heat a nonstick skillet over high heat. Add the marinated beef and cook for 2 to 3 minutes until browned and just cooked through. Remove from heat and set aside.
03 - In a small bowl, mix Greek yogurt, mayonnaise, Dijon mustard, lemon juice, salt, and pepper until combined.
04 - Lay out the lettuce leaves and spread a small amount of sauce on each leaf.
05 - Distribute the cooked beef evenly among the lettuce leaves. Top with carrot, cucumber, and spring onion.
06 - Sprinkle toasted sesame seeds and chopped cilantro on each wrap if desired.
07 - Roll or fold the lettuce leaves around the filling to form wraps. Serve immediately.