In a small bowl, combine the tomato, yellow pepper, kalamatas, garlic and balsamic. Season with salt and pepper and set aside.
Line a baking sheet with nonstick foil. Then, place the bread in a single layer, brush the tops with olive oil and broil 6-8 inches from the heating element until golden, 2–3 minutes. Turn and broil the other side, 1–2 minutes, until it begins to toast. Then, remove it from the oven.