1. Presoak wooden skewers.
2. In a medium bowl or ziplock bag, combine all marinade ingredients.
3. Add steak cubes and marinate in refrigerator for six hours.
4. Thread meat and vegetables onto skewers, and place in a sealable container. Close container and wrap in plastic wrap. Refrigerate six to 12 hours.
5. Cook potatoes in their skins. Coat with olive oil, some coarse salt, pepper, and rosemary. Store in a sealed container.