Home > Family Meal Ideas > Easy Leftover Roast Lamb Shepherd’s Pie Recipe

Easy Leftover Roast Lamb Shepherd’s Pie Recipe

We are trying to spend less on our food and one of the best ways we have found is by buying larger cuts of meat and replacing our mince in our family meals with that in the week. We used to buy small joints of meat to roast, however, they shrank and we ended up with an overcooked Sunday Roast and very little meat on our plate. So instead we buy more than enough and end up with at the minimum 2 meals but often 3 or 4 that we can freeze once made. This recipe calls for the leftover Roast Lamb and ended up making enough for 6 people. So here it is Leftover Roast Lamb Shepherd’s Pie Recipe for families.

quick and easy recipe using leftover roast lamb ideal for families

Leftover Roast Lamb Shepherd’s Pie Recipe

delicious midweek meal for family with leftover roast lamb

In our family, tomatoes go with every sort of mince so like our Freezeable Mediterranean Shepherd’s Pie this one uses tomatoes in the meat sauce as well. You could, of course, make it with your favourite gravy or mix.

homemade from scratch shepherds pie with sliced potato and melted cheese topping

The best way to do this is to use cold roast lamb so once you’ve cut your meat for the roast, cover and once cool place in the fridge and use the next day.

chopping up roast lamb in the food processor to make shepherds pie with leftovrs


onion and garlic chopped up

My favourite gadget for easy ways to make dinner is my food processor. I used to have a small chopper but as we now try and make meals in batch and put in the freezer I’ve moved up to a full-sized processor and it’s great. Once the lamb in chopped into smaller cubes I throw it in and let it do the work to a fine mince and then use it as I would raw mincemeat from the butchers although cutting the browning time as it’s already browned.

tomato based shepherds pie mix in a oven dish

Because of the shorter cooking time you need to be ready to add the tomatoes quickly to avoid burning the mince (I’ve done it!) so get prepared ahead of time and open the carton, have the herbs ready to add and just go for it.

laying on sliced potatoes for homemade shepherds pie

You can make this with mashed potatoes, but neither of my kids are keen on mash so we’ve started using sliced potatoes which we keep the skin on so adds a little more fibre to the meal as well.

grated cheese sprinkled on a homemade shepherds pie

When we make this I do one dish with cheese like below and a separate dish without cheese as half the family doesn’t like it.

shepherds pie shot top down

top down view of dish of shepherds pie made with leftover roast lamb

Leftover Roast Lamb Shepherd's Pie

Cerys Parker
A simple recipe for a tomatoey shepherd's pie made with leftover roast lamb ideal for families and quick and easy to put together.
No ratings yet
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Course Main Course
Cuisine English
Servings 6 people


  • leftover Roast Lamb
  • 1 tbsp olive oil
  • 1 medium onion
  • 2 cloves garlic
  • 1 carton passata 500g
  • 1 tsp dried oregano
  • ½ tsp dried rosemary
  • 1 tsp mint sauce
  • salt and pepper to taste
  • 4 to 6 small to medium potatoes we used Maris Pipper in the recipe
  • 1 handful grated cheddar cheese


  • Preheat the oven to 180C.
  • Chop up the leftover roast lamb into cubes and put in a food processor.
  • Using the pulse chop the lamb to a mince consistency and set aside.
  • Finely chop a medium onion and crush the cloves of garlic.
  • In a saucepan add some olive oil and heat.
  • Add the onion and garlic to the olive oil and brown.
  • Once they start to brown add in the mince and stir to warm up and brown a little more.
  • Then add in the passata.
  • Stir until well combined and then add in the herbs and season with salt and pepper.
  • Leave to simmer for around 10 minutes whilst you slice the potatoes and grate the cheddar cheese.
  • With your meat sauce finished pour into an oven proof dish and add the potatoes over the top.
  • Drizzle a little olive oil over them and then sprinkle the cheddar over the top.
  • Place in the oven for 20 minutes until the potatoes are crisp and the cheese is bubbling.
  • Allow to cool for 3 to 5 minutes and then serve. It's great with some vegetables.
Keyword Easy Family Food, Family Meal, lamb recipe, leftover, mid-week meal idea
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yummy leftover recipe for roast lamb

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leftover roast lamb recipe for Shepherd's Pie with a sliced potato and cheddar topping.

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