Follow these simple steps to create your Delicious Grilled Steak and Potato Kabobs:

1. Prepare the Marinade: In a bowl, combine olive oil, soy sauce, Worcestershire sauce, minced garlic, paprika, black pepper, salt, and red pepper flakes.

2. Marinate the Steak: Cut the steak into 1-inch cubes. Place them in the marinade and let them soak for at least 30 minutes (or up to 4 hours in the refrigerator for more flavor).

3. Prepare the Vegetables: While the steak is marinating, wash and peel the potatoes. Cut them into 1-inch cubes. Slice the bell pepper and onion into similar-sized pieces for even cooking.

4. Parboil the Potatoes: Bring a small pot of salted water to a boil. Add the potato cubes and cook for about 5-7 minutes, or until slightly tender. Drain and set aside.

5. Assemble the Kabobs: Thread the marinated steak, parboiled potatoes, bell pepper, and onion onto the skewers. Alternate the pieces for an appealing presentation.

6. Preheat the Grill: Heat your grill to medium-high heat. Ensure the grates are oiled to prevent sticking.

7. Grill the Kabobs: Place the assembled kabobs on the hot grill. Cook for 10-15 minutes, turning occasionally, until the steak reaches your desired doneness and the vegetables are tender.

8. Serve: Once cooked, remove the kabobs from the grill. Allow them to rest for a few minutes before serving.