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Hearty Lentil and Mushroom Cottage Pie
Hearty Lentil and Mushroom Cottage Pie

Hearty Lentil and Mushroom Cottage Pie

with Cheesy Mash Top and Peas

Recipe Development Team
Recipe Development TeamUpdated on September 15, 2025

A British favourite, cottage pie is most recognisable as a deeply savoury layer of meat filling topped with mash, but here we're making it vegetarian with lentils and mushrooms for a filling and wholesome meal. Best enjoyed after baking until golden and scrumptious!

Tags:
Veggie
Calorie Smart
Allergens:
Milk
Sulphites

The quantities provided above are averages only.

Boxes and ingredients are packed in facilities that handles Peanut, Nuts, Sesame, Fish, Crustaceans, Milk, Egg, Mustard, Celery, Soya, Gluten and Sulphites. Due to the war in Ukraine, it has been necessary to substitute sunflower oil with rapeseed oil in some products without a label change. The FSA have advised that allergic reactions to rapeseed oil are rare.

Total40 minutes
Active 30 minutes
DifficultyMedium

Ingredients

serving amount

1 unit(s)

Carrot

120 grams

Sliced Mushrooms

450 grams

Potatoes

2 unit(s)

Garlic Clove

1 carton(s)

Lentils

(May contain traces of: Barley, Cereals containing gluten, Kamut (wheat), Khorasan (wheat), Oats, Rye, Spelt (wheat), Wheat)

40 grams

Mature Cheddar Cheese

(Contains: Milk)

1 carton(s)

Tomato Passata

15 grams

Mushroom Broth Paste

28 grams

Red Wine Stock Paste

(Contains: Sulphites)

1 sachet(s)

Dried Rosemary

120 grams

Peas

Not included in your delivery

1 tsp

Sugar

50 milliliter(s)

Water for the Sauce

30 grams

Butter

Nutritional information

Energy (kJ)2706 kJ
Energy (kcal)647 kcal
Fat21.2 g
of which saturates12.6 g
Carbohydrate89.8 g
of which sugars16.9 g
Dietary Fibre17 g
Protein26.3 g
Salt5.15 g
Always refer to the product label for the most accurate ingredient and allergen information.

Utensils

Medium Saucepan
Pan
Sieve
Garlic Press
Grater
Potato Masher
Colander
Oven dish

Cooking Instructions and Tips

Get Prepped
1

Bring a large saucepan of water with ½ 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 chopped 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 has 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. Grate the cheese.

Bring on the Sauce
3

Once the veg has softened, add the garlic and cook for 1 min. 

Add the passata, mushroom broth paste, red wine stock paste, dried rosemary, sugar and water for sauce (see pantry for both amounts) to the pan.

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

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.

Preheat your grill to high.

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 the pie filling with an even layer of mash and sprinkle over the cheese.

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. 

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