Shepherd’s Pie
Why this recipe works
- Deep savoury base: Browning the lamb, cooking out the tomato paste and simmering with thyme and Worcestershire sauce gives the gravy depth before baking.
- Soft filling, golden topping: A rich lamb filling sits beneath smooth mashed potato, with a fork-roughened surface that catches colour in the oven.
- Good for planning ahead: The assembled pie can be cooled, stored and reheated, making it practical for batch cooking or a prepared-ahead dinner.
Get the most out of this recipe
Timing notes
- Rest before serving: Let the pie stand for 10 minutes after baking so the gravy settles slightly and the portions hold together better.
- Parallel prep: Cook the potatoes while the lamb filling simmers to keep the workflow efficient without rushing either component.
Texture tips
- For fluffier mash: Drain the potatoes thoroughly and let excess steam escape before mashing, then add the warm milk gradually.
- For a better top: Spread the mash right to the edges to seal the filling, then rough up the surface with a fork so it browns more evenly.
Common mistakes
- Watery filling: Do not stop simmering the lamb mixture too early; the gravy should be rich and lightly thickened before it goes into the baking dish.
- Wet potato topping: Avoid mashing potatoes straight after draining if they are still waterlogged, as excess moisture can make the topping heavy.
Make-ahead tips
- Assemble in advance: The pie can be assembled ahead once the filling and mash have cooled, then covered and refrigerated until ready to bake or reheat.
- Freezer-friendly: Cool completely before freezing. Thaw overnight in the fridge for the best texture before reheating.
- Reheat gently: Reheat covered in a 180°C (355°F) oven until piping hot throughout, uncovering near the end if the topping needs refreshing.
Equipment you'll need
Ingredients
Lamb filling
Mashed potato topping
Instructions
- Heat the oven to 200°C (390°F). Peel and cut the onion and carrots into small dice so they cook evenly.
- Melt the butter in a large frying pan over medium heat. Add the onion and carrots with a pinch of the salt and cook for 8 to 10 minutes until softened and lightly golden.
- Add the minced lamb and cook for 6 to 8 minutes, breaking it up, until browned and no longer pink. Stir in the tomato paste and cook for 1 minute to deepen the flavour.
- Add the thyme sprigs, beef stock, Worcestershire sauce, remaining salt and the black pepper. Bring to a gentle simmer and cook for 20 to 25 minutes until the gravy is rich and lightly thickened; remove the thyme sprigs.
- Stir the frozen peas into the lamb mixture and cook for 2 minutes until hot. Tip into a baking dish and spread into an even layer.
- While the lamb simmers, peel the potatoes and cut into even chunks. Cook in a large pot of salted water for 15 to 18 minutes until very tender when pierced with a knife, then drain well.
- Warm the milk, then mash the potatoes until smooth and fluffy, gradually beating in the milk. Spoon the mash over the lamb filling, spread to the edges to seal, then rough up the surface with a fork for a crisp top.
- Bake for 25 to 30 minutes until bubbling at the edges and lightly golden on top. Rest for 10 minutes before serving so the filling settles.
Recipe notes
Tips
- For a deeper, more savoury gravy, let the lamb mixture simmer until it leaves a brief trail when you drag a spoon through it before topping with the mash.
- To keep the mash fluffy, drain the potatoes thoroughly and return them to the hot pot for 1 minute to steam off excess moisture before mashing.
Substitutions
- Replace Fresh thyme with 1 tsp dried thyme, added with the beef stock.
- Replace Whole milk with the same amount of Beef stock for a lighter mash.
Storage
- Refrigerate up to 3 days
- Cool completely, then cover and refrigerate. Reheat in a 180°C (355°F) oven for 25 to 35 minutes until piping hot throughout; if frozen, thaw overnight in the fridge before reheating for best texture.
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Recipe overview
- Servings: 4 servings
- Total time: 1h 30min (35min active)
- Difficulty: Medium
- Cuisine: British
-
Allergens:
Milk
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