Arrange sliced tomatoes on oil baking sheet. Add salt, pepper and balsamic vinegar.
Bake at 450° for about 10 minutes.
Serve over fresh bread or add to puff pastry.
For puff pastry, thaw sheets of pastry, roll out to make flat. Cut each into 6 equal pieces. Add the baked tomatoes overlapping slightly and brush edges lightly with olive oil. Bake at 450° for 10-15 minutes.
Option: Add your favorite herbs, basil, thyme, oregano or chives before baking tomatoes or add when baking the puff pastry.