1. Preheat the oven to 400°F (200°C).

2. In a skillet, cook the bacon until crispy. Remove from the skillet and chop into small pieces.

3. In the same skillet, sauté the shallots and garlic until softened.

4. Roll out the puff pastry and cut it into small squares.

5. Place a slice of brie on each square, top with chopped bacon, mozzarella, parsley, and freshly grated parmesan.

6. Fold the squares into triangles and seal the edges with a fork.

7. Brush each puff pastry bite with melted butter.

8. Bake in the preheated oven for 15-20 minutes or until golden brown and puffed up.