Grilled Beef Braciole with Grilled Tomato-Basil Relish

This recipe comes courtesy of Bobby Flay and the Food Network: http://www.foodnetwork.com/recipes/bobby-flay/grilled-beef-braciole-with-grilled-tomato-basil-relish-recipe/index.html.  It was to-die for! The tomato-basil relish is the perfect topping for this cheese & herb stuffed meat.

For the grilled tomato-basil relish:

8 plum tomatoes (I would double the tomatoes)
5 tablespoons olive oil (you probably don't need quite this much)
Salt
Freshly ground black pepper
1/2 small red onion, finely diced
2 tablespoons balsamic vinegar
2 tablespoons finely chopped fresh basil leaves
1 tablespoon finely chopped parsley leaves

For the beef:
1 (2-pound) round steak, pounded to 1/4-inch thickness
Salt
Freshly ground black pepper
1/4 cup grated pecorino Romano cheese
1/4 cup finely chopped fresh flat leaf parsley
2 tablespoons finely chopped fresh oregano leaves
4 cloves garlic, finely chopped
1/4 cup olive oil
3 (8-inch) pieces butcher's twine, soaked in cold water (or toothpicks, soaked in water)
Fresh basil sprigs, for garnish

For the grilled tomato-basil relish:

1.  Heat the grill to medium-high.
2.  Cut the tomatoes half, then brush with 2 tablespoons of the oil and season with salt and pepper. Grill the tomatoes on all sides until slightly charred and soft. Remove the tomatoes from the grill, chop and place in a bowl. Add the remaining 3 tablespoons of oil, onion, vinegar, basil and parsley and season with salt and pepper. Serve warm or at room temperature.

For the beef:

1.  Heat the grill to medium.

2.  Place the steak on a flat surface. Combine the cheese, parsley, oregano and garlic in a small bowl. Brush the steak on the side facing up with 2 tablespoons of the oil and season with salt and pepper. Sprinkle the cheese mixture evenly over the steak, leaving a 1/2-inch border around the sides.

3.  Starting with the long end, tightly roll the meat up like a jelly roll and tightly tie with the butcher's twine on the ends and in the center. Brush the entire outside of the steak with the oil and season with salt and pepper. Place on the grill, seam-side up and grill until golden brown on all sides, about 10 to 12 minutes. Remove from the grill and let rest 10 minutes before slicing into 1/2-inch thick slices. Serve several slices per person topped with some of the relish.