01 - In a medium bowl, combine beef slices with olive oil, soy sauce, black pepper, and minced garlic. Toss to coat and marinate for 10 minutes.
02 - Heat a large skillet over medium-high heat. Sear the marinated beef for 2–3 minutes per side until browned but still tender. Remove from heat and allow to rest.
03 - In a large salad bowl, arrange the mixed greens, cucumber, carrot, cherry tomatoes, red onion, and avocado.
04 - Whisk together olive oil, balsamic vinegar, Dijon mustard, honey, salt, and pepper until emulsified.
05 - Slice the cooked beef into bite-sized strips and arrange on top of the salad.
06 - Drizzle the dressing over the salad. Sprinkle with toasted sesame seeds and crumbled feta cheese, if desired.
07 - Serve immediately for optimal freshness and flavor.