Making Mini Meatball Puff Pastries is simple when you follow these easy steps:

1. Preheat the Oven: Start by preheating your oven to 400°F (200°C). Line a baking sheet with parchment paper to prevent sticking.

2. Mix Ingredients: In a large bowl, combine the ground beef, breadcrumbs, Parmesan cheese, parsley, minced garlic, egg, salt, and black pepper. Mix until well combined.

3. Shape Meatballs: Form the mixture into small meatballs, about 1 inch in diameter. You should get approximately 20-25 meatballs.

4. Prepare Puff Pastry: Roll out the thawed puff pastry sheets on a lightly floured surface. Cut the pastry into squares, approximately 3×3 inches.

5. Wrap Meatballs: Place a meatball in the center of each square. Fold the corners of the pastry over the meatball to encase it completely. Pinch edges to seal well.

6. Brush with Oil: Lay the wrapped meatballs on the prepared baking sheet seam-side down. Brush the tops with olive oil to give them a golden finish.

7. Bake: Bake in the preheated oven for 20-25 minutes, or until the pastries are golden brown and puffed.

8. Cool Slightly: Once baked, remove from the oven and allow the pastries to cool for a couple of minutes before serving.

9. Serve with Sauce: If desired, serve warm with marinara sauce for dipping.

These steps lay out a clear path to creating your delicious Mini Meatball Puff Pastries, ensuring you get everything just right.