You can swap the chicken for beef cubes if you prefer. I like to use petite beef filets or beef tenderloin cut into cubes for kabobs. Preheat your grill to high. These don't take much time at all to cook to medium. Place on the grill for about 4-5 minutes, then flip the skewers over and grill the other side for another 4-5 minutes. (4 minutes on each side will get you to a medium-rare and 5 minutes to a medium.) Check out my Quick Garlic Steak Kabobs with Creamy Cilantro Sauce recipe too!