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Lentil and Mushroom Cottage Pie

Lentil and Mushroom Cottage Pie

with Cheesy Mash Top and Peas
4.0(4.7k)Review Summary
Lily Stevens
Lily StevensUpdated on July 24, 2026
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Calories
628 kcal
Protein
24.1g protein
Total
40 minutes
Difficulty
Medium
Allergens:
  • Sulphites
  • Milk

This delicious Lentil and Mushroom Cottage Pie has been expertly designed by our chefs as a lighter option to help with a balanced lifestyle.

Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
serving amount

1

Carrot

120

Sliced Mushrooms

450

Potatoes

2

Garlic Clove

1

Dried Rosemary

1

Tomato Passata

15

Mushroom Broth Paste

28

Red Wine Stock Paste

(Contains: Sulphites)

40

Mature Cheddar Cheese

(Contains: Milk)

1

Lentils

120

Peas

Not included in your delivery

1

Sugar for the Sauce

50

Water for the Sauce

30

Butter

Energy (kJ)2628 kJ
Energy (kcal)628 kcal
Fat21.8 g
of which saturates12.7 g
Carbohydrate85.3 g
of which sugars20.5 g
Protein24.1 g
Salt5.5 g
Due to the different suppliers we purchase our products from, nutritional facts per meal can vary from the website to what is received in the delivered box, depending on your region.
Large Saucepan
Sieve
Garlic Press
Large Frying Pan
Grater
Potato Masher
Colander
Oven dish

Cooking Steps

Get Prepped
1

Bring a large saucepan of water with 1/2 tsp salt to the boil for the potatoes. 

Trim the carrot, then quarter lengthways (no need to peel). Chop widthways into small pieces. 

Roughly chop the sliced mushrooms. Chop the potatoes into 2cm chunks (peel first if you prefer).

When boiling, add the potatoes to the water and cook until you can easily slip a knife through, 15-20 mins. 

Start the Pie Filling
2

Meanwhile, heat a drizzle of oil in a large frying pan on high heat. Once hot, add the carrot and stir-fry for 3-4 mins. 

Add the mushrooms to the pan and season with salt and pepper. Fry, stirring occasionally, until the veg is softened, 5-6 mins.

In the meantime, peel and grate the garlic (or use a garlic press). Drain and rinse the lentils in a sieve.

Once the veg has softened, add the garlic and dried rosemary. Cook for 1 min. 

Bring on the Sauce
3

Stir the passata, mushroom broth paste, red wine stock paste, sugar and water for the sauce (see pantry for both amounts) into the pan

Bring to the boil, then stir through the lentils. Lower the heat and simmer until thickened, 4-5 mins. 

Meanwhile, grate the Cheddar. Preheat your grill to high. 

Time to Mash
4

Once the potatoes are cooked, drain in a colander and return to the pan, off the heat.

Add half the butter (see pantry for amount) and a splash of milk (if you have any) and mash until smooth. Season with salt and pepper. 

Assemble and Grill
5

Once the pie filling has thickened, taste and season with salt and pepper if needed. Transfer to an appropriately sized ovenproof dish. 

Top with an even layer of mash and sprinkle over the Cheddar,

Grill until the cheese is bubbling and golden, 5-6 mins.

Finish and Serve
6

Meanwhile, clean the (now empty) frying pan and pop back on medium heat with the remaining butter. 

Once melted, add the peas and stir until piping hot, 2-3 mins. Season with salt and pepper, then remove from the heat.

When the pie is ready, serve on plates with the buttery peas alongside. 

Enjoy!

Customer reviews

Review summary

Updated on Aug 2026
  • Flavour: The combination of red wine stock paste and mushroom broth gives the filling a rich, satisfying depth that surprises many meat eaters. Some find the sauce a touch too salty, tomato-forward, or earthy with rosemary, so adjust seasoning to your taste.
  • Ease of prep: Straightforward to follow, though several cooks note it takes longer than the suggested time, particularly when making the mash from scratch.
  • Suggestions: Use slightly less rosemary if you prefer a milder herb flavour, and consider adding a teaspoon of marmite, a splash of Worcestershire sauce, or soy sauce to deepen the filling. Adding an onion to the base is a popular choice, and some cooks stir the peas directly into the lentil mix rather than serving them on the side.
  • Next-day meals: Leftovers keep well in the fridge and many find the flavour improves the next day; the recipe also stretches comfortably to three portions and freezes well.
  • Portions: The quantity of mashed potato is frequently noted as too little to cover the filling — adding an extra potato makes a noticeable difference.
AI-generated from customer reviews

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