Creating these Mediterranean Beef Kabobs is straightforward if you follow these simple steps:

1. Prepare the Marinade: In a bowl, whisk together the olive oil, lemon juice, minced garlic, oregano, cumin, paprika, salt, and pepper.
2. Marinate the Beef: Place the beef cubes in a resealable plastic bag or a bowl. Pour the marinade over the beef, ensuring each piece is well coated. Seal the bag or cover the bowl and refrigerate for at least one hour (or overnight for enhanced flavor).
3. Prepare the Vegetables: While the beef is marinating, chop the bell peppers, onion, and zucchini into bite-sized pieces.
4. Preheat the Grill: Preheat your grill to medium-high heat. If using wooden skewers, soak them in water for 30 minutes to prevent burning.
5. Assemble the Kabobs: Thread the marinated beef and vegetables onto the skewers, alternating between meat and veggies for a colorful presentation.
6. Grill the Kabobs: Place the skewers on the grill and cook for about 15-20 minutes, turning occasionally, until the beef is cooked to your desired doneness and the vegetables are tender.
7. Rest and Serve: Once cooked, remove the kabobs from the grill and let them rest for a few minutes before serving.

By following these steps, you’ll have delicious Mediterranean Beef Kabobs that are bursting with flavor and ready to impress!