These are individual hand-held pies — minced beef cooked down with onion, garlic, tomato paste, and Worcestershire sauce, then sealed in puff pastry with sharp cheddar and baked until golden. Kumara mash goes alongside, adding natural sweetness that balances the savory filling. The whole meal comes together in about 75 minutes and makes four pies, which is enough to actually fill people up.
The short version of why this works
Two things matter here. First, let the beef filling simmer until it genuinely thickens — a wet filling will turn the pastry base soggy before it has a chance to crisp. Ten minutes of simmering is the minimum; pull it off the heat when the liquid has reduced and the mixture holds its shape on a spoon. Second, let the filling cool before you load the pastry. Hot filling softens puff pastry and the layers won’t puff properly in the oven. Ten minutes on the bench is enough. Get both of those right and the pastry stays flaky, the filling stays inside, and the cheese melts into the beef rather than leaking out.
Ingredient notes
- Kumara: This is New Zealand’s orange-fleshed sweet potato — denser and less watery than some other varieties. If you can’t find it, use any orange-fleshed sweet potato. Standard white sweet potato works but gives a milder, starchier mash. Regular russet potato is a fine substitute if that’s what you have.
- Puff pastry: One pre-rolled sheet is usually around 320–375g and cuts into 8 squares comfortably. Shortcrust pastry works if that’s what’s in the freezer — the result is denser but still good. Thaw puff pastry in the fridge overnight rather than on the counter; it handles better when cold.
- Sharp cheddar: Grate it yourself. Pre-shredded cheddar has anti-caking coatings that stop it from melting cleanly into the filling.
- Beef stock: Low-sodium gives you control over salt. If you only have regular stock, skip any added salt until you taste the finished filling.
Troubleshooting
- Pastry is soggy on the bottom: The filling was too wet or too hot when you assembled the pies. Next time simmer longer and cool the filling fully. You can also pre-bake the tray for 5 minutes before placing the pies on it — a hot tray helps the base crisp faster.
- Pies burst open during baking: The edges weren’t sealed firmly enough, or they were overfilled. Press the fork firmly all the way along the seam, and keep the filling to a heaped tablespoon per pie — less than you think you need.
- Kumara mash is watery: Kumara releases moisture as it cooks. Drain it thoroughly and let it sit in the colander for a minute before mashing. Mash over low heat for 30 seconds to drive off extra steam before adding butter and milk.
- Filling tastes flat: Worcestershire sauce and tomato paste both need heat to develop. If the filling simmered for less than 10 minutes, the flavors won’t have concentrated. A small splash more Worcestershire at the end, stirred in off the heat, fixes it quickly.
- Cheese leaks out during baking: Some leakage is normal with puff pastry. Skip the garnish of extra cheese on top — not worth the extra mess on the tray. Keep the cheese inside the filling where it stays put.
Leftovers and meal prep
Baked pies keep in the fridge for up to 3 days in an airtight container. Reheat in a 180°C (350°F) oven for 10–12 minutes — the microwave works in a pinch but the pastry goes soft. Kumara mash keeps separately for 3 days; reheat it in a saucepan over low heat with a splash of milk stirred in. Both the cooked filling and the unbaked assembled pies freeze well for up to 2 months. If freezing assembled pies, freeze them on a tray first until solid, then transfer to a bag. Bake from frozen at 200°C (390°F) for 30–35 minutes. The raw filling can also be made 2 days ahead and refrigerated, which cuts assembly time on a busy night down to about 20 minutes.
Minced Beef and Cheese Pies with Kumara Mash
Ingredients
Filling
Pastry
- 1 sheet puff pastry - pre-rolled, thawed if frozen
- 1 egg egg wash - beaten with 1 tbsp water
Kumara Mash
- 600 g kumara - peeled and cubed
Instructions
- Preheat your oven to 200°C (390°F). Line a baking tray with parchment paper.
- Heat the olive oil in a large pan over medium heat. Add the chopped onion and sauté until soft and golden, about 5 minutes, ensuring to stir frequently for even cooking.
- Add the garlic and cook until fragrant, approximately 1 minute. Stir in the minced beef, breaking it up with a spoon, and cook until browned.
- Mix in the tomato paste, beef stock, and Worcestershire sauce. Let simmer until the liquid reduces slightly and the mixture thickens, about 10 minutes. Set aside to cool slightly.
- Roll out the puff pastry and cut into 8 equal squares. Place a portion of the beef mixture onto each square, sprinkle with grated cheese, and fold over to form a triangle, sealing the edges with a fork.
- Brush the top of each pie with egg wash for a golden finish. Transfer to the prepared baking tray and bake for 20-25 minutes or until the pastry is golden and crisp.
- While the pies bake, prepare the kumara mash. Boil the kumara in a pot of salted water until tender, about 15 minutes. Drain and return to the pot.
- Add butter and milk to the kumara, mashing until smooth and creamy. Season with salt and pepper to taste.
- Serve the pies warm, accompanied by a generous scoop of kumara mash. For an elegant touch, garnish with freshly chopped parsley or thyme leaves.
Notes
Nutrition
FAQ
Can I make these as one large pie instead of four individual ones?
Yes — use a 20cm (8-inch) pie dish, line it with one sheet of pastry, add all the filling, top with a second sheet, seal and egg-wash, then bake at 200°C (390°F) for 30–35 minutes. The filling needs to be fully cooled before it goes in or the base will be undercooked by the time the top is done.
How do I know the beef filling is cooked through safely?
Ground beef needs to reach an internal temperature of 160°F (71°C) to be safe. In practice, if you’re browning it properly in a hot pan until no pink remains and then simmering it for 10 minutes, it will be well past that temperature before it goes into the pastry.
Can I add vegetables to the filling to stretch it further?
Finely diced carrot, celery, or frozen peas all work well — add them with the onion so they have time to soften. Keep any additions finely cut so the filling stays compact enough to seal inside the pastry without bulging.
My family doesn’t like sweet potato — what else can I serve alongside?
Regular mashed potato is the straightforward swap and pairs just as well with the savory filling. Steamed green beans or a simple green salad also work if you want something lighter alongside the pies.
Can I assemble the pies the night before and bake them the next day?
Yes — assemble, cover with plastic wrap, and refrigerate overnight. Brush with egg wash just before baking, not ahead of time. Add 3–5 minutes to the bake time since they’ll be going in cold.
“My family absolutely devoured these Minced Beef and Cheese Pies with the kumara mash. The filling was perfectly savory and cheesy, and the hint of sweetness from the kumara mash balanced it all so beautifully. I loved how easy the puff pastry was to work with—such a time saver!
I did add a pinch of nutmeg to the mash, like you suggested, and it really elevated the flavor (highly recommend trying that!). Next time, I’m thinking of experimenting with a bit of rosemary in the beef filling—do you think that would work well?
Thank you so much for sharing this recipe. It felt like such a comforting and fancy treat all in one. Can’t wait to make it again for a dinner party!”