Beef flank steak tastes great when marinated and grilled. Make this Grilled Beef Flank Steak and Tomato Kabobs for an easy meal that is big on flavor and low on prep time. Marinate the beef earlier in the day so it’s ready to grill just before dinnertime. Grilling the tomato kabobs takes just 5 minutes and elevates the sweet tomato flavor even more. Top it all off with Cilantro Pesto for a satisfying, healthy meal.