1. In a small skillet, saute garlic in oil for 1 minute. Add the tomatoes; cook until liquid has evaporated. Remove from the heat; stir in the mozzarella cheese, basil and pepper.
2. Spoon 1 teaspoonful into each tart shell. Top each with an olive piece; sprinkle with Parmesan cheese. Place on an ungreased baking sheet. Bake at 450° for 5-8 minutes or until bubbly. Yield: 2 dozen.