Preheat broiler. Using largest hole of box grater, carefully grate tomatoes into bowl and discard skin; set aside.
Place bread halves on foil-lined baking sheet. Stir together oil and garlic; brush oil over bread. Broil for 1 to 2 minutes or until golden brown and toasted; rub with split garlic.
Spoon grated tomatoes and juices over bread. Sprinkle with salt; cut into slices.