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leftover lamb shepherds pie in baking dish with a section of potato taken off to show the juicy lamb layer underneath

Leftover Lamb Shepherd's Pie

This easy leftover lamb shepherd's pie with a rich meaty gravy topped with soft and fluffy mashed potato before being baked to get a crispy top, is a comforting winter dinner.
5 from 4 votes
Prep Time 30 mins
Cook Time 20 mins
Course Main Course, main dish
Cuisine British
Servings 4 people
Calories 606 kcal


  • 500 g leftover roast lamb finely chopped
  • 1 tbsp olive oil
  • 1 large onion finely diced
  • 1 celery stick finely diced
  • 2 carrots finely diced
  • 2 cloves garlic crushed
  • 1 tbsp fresh rosemary finely chopped
  • 1 tbsp tomato puree
  • 500 ml stock
  • dash Worcestershire sauce optional
  • salt
  • black pepper

Mashed Potatoes:

  • 800 g floury potatoes peeled and chopped into cubes
  • 1 tbsp butter
  • 60 ml milk
  • pinch salt


  • Preheat the oven to 200˚C fan/ 220˚C/ 392˚F convection/ 428˚F
  • In a medium saucepan over a low heat, add the olive oil then cook the onion, carrots and celery until soft for about 10 minutes
  • Add the crushed garlic and finely chopped rosemary and cook for 1 minute before adding the tomato puree.
  • Add the chopped lamb, stock, Worcestershire sauce and season with salt and pepper, bring to a simmer and cook for 15 minutes.
  • Meanwhile, cook the potatoes:
  • Boil the potatoes for 15-20 minutes, until soft.
  • Drain well then add the butter, milk and salt and mash until smooth.
  • Place the lamb into the bottom of a 20 x 27 cm (7.8 x 10.5") or similar size, baking dish.
  • Spoon over the mashed potato and smooth.
  • With a fork, drag lines across the top - these will get extra crispy.
  • Place in the oven and bake for 20-25 minutes until golden.
  • Eat straight away.


Vegetables: you could use leftover roast or boiled carrots or parsnips - roughly chop them and add the last 5 minutes of heating the sauce.
Stock: If you don't have stock, use 500ml boiling water and a stock cube.
Floury potatoes: Desiree, Maris Piper and King Edward are great varieties of potatoes to use for fluffy mash.


Calories: 606kcalCarbohydrates: 44gProtein: 26gFat: 36gSaturated Fat: 15gTrans Fat: 1gCholesterol: 100mgSodium: 642mgPotassium: 1307mgFiber: 6gSugar: 6gVitamin A: 5518IUVitamin C: 44mgCalcium: 84mgIron: 4mg
Keyword lamb pie, leftover lamb recipe, leftover roast lamb recipe


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