Preheat your oven to 375°F (190°C).
If using wonton skins, lightly brush each skin with vegetable oil on both sides. If using phyllo shells, remove them from the box and place on the baking sheet.
Carefully cut the Brie into small cubes, approximately 1 inch in size.
In a small mixing bowl, combine the raspberry preserves and minced rosemary.
Place a small dollop of the raspberry mixture at the bottom of each wonton skin or phyllo shell. Top with a piece of Brie and another dollop of the raspberry mixture.
Arrange the assembled bites on the prepared baking sheet and bake for about 12-15 minutes, or until the skins are golden and crispy.
Once baked, remove from the oven, cool slightly, and garnish with fresh raspberries and minced rosemary.