Spray baking sheet with cooking spray.
Cut each sandwich thin into 6 triangles (each top & bottom makes 12). Make as many as you need.
Spray each triangle lightly with cooking spray.
Bake about 10 minutes or until golden brown.
Cool & set aside.
3In a large bowl, combine the cream cheese, yogurt, 1 cup of the Mozzarella, basil, garlic, salt & pepper & mix thoroughly. Fold in the tomatoes. Using a spatula, spread mixture evenly across the bottom of a glass pie plate. Top with the remaining 1/2 cup of shredded Mozzarella.