Preheat oven to broil. Rub bread slices with garlic. Toast bread, turning once, about 4 minutes on each side.
Dressing: In small bowl, whisk together vinegar, mustard, oil and broth until well blended. Season with salt and pepper.
Cut bread into small cubes and put into serving bowl. Add tomatoes, beans, roasted pepper and basil. Pour dressing over salad and toss to mix and coat. Let rest 5 to 10 minutes before serving.