Argentinian Beef Kabobs with Chimichurri sauce

Ingredients

• 3/4 teaspoon dried oregano
• 1 tsp sea salt
• 1/8 tsp cayenne pepper
• 4 tablespoons fresh lemon juice
• 2 cloves garlic, peeled and minced
• 1 cup Olive oil
• 2/3 cup minced shallot
• 2/3 cup fresh flat leaf parsley, finely chopped
• 2 teaspoons chopped fresh basil
• 1 tsp freshly ground pepper
• 3 1/2 -4 lbs beef tenderloin, same cut as filet mignon trimmed of fat and cut into 1 1/2 " cubes