Preheat the Oven: Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper and set aside.
Prepare the Filling: In a large skillet, heat the olive oil over medium heat. Add the finely chopped onion and cook until softened, about 3-4 minutes. Add the minced garlic and cook for another 1-2 minutes until fragrant.
Cook the Beef: Add the ground beef to the skillet, breaking it up with a spoon. Cook until browned and cooked through, about 8-10 minutes. Season with salt, black pepper, and paprika. Drain any excess fat if necessary.
Combine Beef and Potatoes: Transfer the cooked beef to a mixing bowl. Add the prepared mashed potatoes and shredded cheddar cheese. Mix until well combined.
Roll Out the Pastry: On a lightly floured surface, roll out each puff pastry sheet to about 12×10 inches. Place one sheet on the prepared baking sheet.
Add the Filling: Spread the beef and potato mixture evenly over the puff pastry, leaving a 1-inch border around the edges.
Form the Roll-Up: Carefully place the second puff pastry sheet on top of the filling. Press the edges together to seal, and use a fork to crimp the edges for a decorative touch.
Egg Wash: Brush the beaten egg over the top of the pastry to give it a golden, glossy finish.
Bake: Bake in the preheated oven for 25-30 minutes, or until the pastry is golden brown and cooked through.
Serve: Allow the roll-up to cool slightly before slicing. Serve warm and enjoy!
Tips and Variations
Recipe Swaps and Variations
Cheese Options: Try using mozzarella, Monterey Jack, or pepper jack cheese for different flavor profiles.
Vegetable Additions: Add finely chopped carrots, peas, or corn to the beef mixture for extra nutrition and color.
Spicy Twist: Add a dash of hot sauce or chopped jalapeños to the beef mixture for a spicy kick.
Storage and Leftovers
Refrigerate: Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F (175°C) until warmed through.
Freeze: You can freeze the roll-up before baking. Wrap it tightly in plastic wrap and aluminum foil, then freeze for up to 2 months. Bake from frozen, adding an extra 10-15 minutes to the baking time.
Pairing Suggestions
Side Dishes: Serve with a side salad, roasted vegetables, or steamed green beans.
Drinks: Pair with a full-bodied red wine like Cabernet Sauvignon or a refreshing iced tea.