01 - In a large bowl, whisk together the olive oil, soy sauce, lemon juice, minced garlic, Worcestershire sauce, honey, dried oregano, black pepper, and kosher salt until well combined.
02 - Add the sirloin cubes to the marinade and toss thoroughly to coat every piece. Cover the bowl and refrigerate for at least 1 hour or up to 4 hours for deeper flavor penetration.
03 - Set your grill or grill pan to medium-high heat, targeting approximately 400°F. Allow the grates to heat fully before placing any food.
04 - Thread the marinated beef cubes and prepared vegetables alternately onto skewers, distributing the colors and shapes evenly for balanced cooking and presentation.
05 - Place the assembled kabobs onto the hot grill. Cook for 10 to 12 minutes, rotating every 2 to 3 minutes, until the steak develops a charred exterior and the vegetables are tender-crisp.
06 - Transfer the kabobs off the grill and let them rest for 2 to 3 minutes to allow the juices to redistribute before serving.