01 - Combine olive oil, chili powder, cumin, smoked paprika, garlic powder, salt, pepper, and lime juice in a bowl. Add the sliced flank steak, toss to coat thoroughly, and let marinate for at least 15 minutes.
02 - Heat a large skillet or grill pan over medium-high heat. Cook the marinated beef for 2-3 minutes per side until just cooked through. Remove from heat and set aside.
03 - In a small bowl, whisk together olive oil, lime juice, honey, minced garlic, Dijon mustard, salt, and pepper until fully emulsified.
04 - Arrange the chopped romaine, bell peppers, red onion, avocado, cherry tomatoes, and cilantro on a large platter or in individual bowls.
05 - Top with the warm beef strips. Drizzle with lime dressing just before serving. Toss gently to combine or serve as a composed salad.