Mozzarella Tomato Basil Bruschetta

loaf (1 lb.) Italian bread 1/3 cup olive oil 2 cloves garlic, minced 1/2 tsp. kosher salt 1/4 tsp. freshly ground black pepper 1/4 tsp. crushed red pepper flakes 1 Roma tomato, diced 1-1/2 cups (6 oz.) mozzarella cheese 6-7 leaves fresh basil, chopped