Preparation
In a small bowl, combine olive oil and garlic. Brush one side of each bread slice with oil mixture. Place bread slices, oil side up, on a cookie sheet and set aside.
In large bowl, combine tomatoes, oregano, and salt and pepper to taste.
In 425 F oven, lightly toast bread slices. Remove from the oven and top with tomato mixture and cheese.
Return to oven and broil until cheese melts.