Rub both sides of the bread with garlic and lightly spray with olive oil. Toast on a heated grill until browned. Cut into large chunks and set aside. Lightly spray each swordfish steak with olive oil and rub on blacken or Cajun seasoning. Place steaks on a preheated grill and cook about 5 minutes on each side, basting as needed with sauce.
Fish is cooked when opaque throughout.
While swordfish is grilling, combine tomato, peppers and onion in a nonstick skillet and lightly saute. While vegetables are still crunchy, add remaining ingredients and cook 2 more minutes. Add the grilled bread chunks and lightly toss. Place vegetable mixture in the center of a large serving platter. Arrange grilled swordfish on top.