Begin by whisking together the olive oil, soy sauce, Worcestershire sauce, honey, mustard, lemon juice, minced garlic, oregano, chili flakes, black pepper, and smoked paprika in a bowl. You want everything to blend nicely, creating a rich mixture that smells divine.

Add the chunks of top sirloin beef to the bowl and ensure they’re well-coated in the marinade. Cover the bowl and let it sit in the refrigerator for at least 2 hours. For the best flavor, let it marinate overnight. Trust me, that extra time makes a difference.

While the beef marinates, prepare your vegetables. Chop the bell peppers into chunks, slice the zucchini into thick rounds, and cut the onion into bite-size squares. This colorful mix will not only enhance the flavor but will also provide lovely variety in your skewer.

Take your soaked wooden skewers and alternate threading the beef chunks with pieces of potato, bell pepper, zucchini, and red onion. Aim for a burst of color on each skewer. Once assembled, drizzle with olive oil and sprinkle with kosher salt and black pepper. You’re aiming for flavorful bites in every position.

In a food processor, combine the cilantro, parsley, garlic, olive oil, red wine vinegar, jalapeño, lime juice, salt, and cumin. Pulse until everything is roughly chopped and combined. Taste it. Adjust if necessary by adding more lime juice or salt. This sauce is your flavor enhancer, so make it your own.

Fire up the grill to medium-high heat. Once hot, place the skewers directly on the grill. Cook for about 10-12 minutes, turning every couple of minutes to achieve even cooking. The beef will be beautifully charred, and the vegetables will soften.

Once cooked to your liking, remove the skewers from the grill. Drizzle generously with your prepared chimichurri sauce before serving. Feel free to have extra sauce on the table for those who wish to dunk!