Winter Warmer Cottage Pie — a plant-based British recipe by BOSH!

Winter Warmer Cottage Pie

This is the one we make when the nights draw in and we just want something proper and comforting on the table. Our Winter Warmer Cottage Pie has all the nostalgia of the classic but it's completely plant-based and honestly, we think it's even better. The filling is deep and savoury with blitzed mushrooms giving it that hearty mince-like texture, and the mash on top goes golden and crispy at the edges in the oven. It's the kind of meal that makes everyone at the table go quiet in a good way. Make this tonight, you will not regret it.

Cook: 50 min
Serves 4

Before You Start

  • Preheat oven to 200°C
  • Large baking dish
  • Food processor
  • Large saucepan
  • Colander
  • Potato masher
  • Deep frying pan

Ingredients

  • 2 tbsp olive oil
  • 1 tbsp dried Italian herbs
  • 1 tbsp tomato purée
  • 1 tbsp Marmite
  • 1 tbsp red wine vinegar
  • 1 red onion
  • 2 garlic cloves
  • 1 leek
  • 1 celery stick
  • 2 carrots
  • 250g chestnut mushrooms
  • 1 x 400g pre-cooked lentils - vacuum packed or tinned / puy or beluga
  • 150g frozen peas
  • Salt & pepper to taste
  • 2 tbsp plant-based butter
  • 650g Maris Piper potatoes
  • Salt & pepper to taste
  • 100ml plant-based milk

Method

1

Peel and finely chop the onion

  • Finely chop the leek and the celery
  • Peel and grate the garlic
  • Peel and grate the carrot
  • Blitz the mushrooms into a mince with the food processor
2

Warm the olive oil in a deep frying over a low heat

  • Add the onions and sweat them down slowly for 5-7 minutes
  • Add the garlic to the pan and stir for 1 minute
  • Add the leek, carrot, celery and herbs to the pan and stir for 5 minutes until the vegetables are soft
  • Add the mushrooms to the pan and stir for 5-7 minutes until they're well sweated
  • Add the tomato puree, marmite and red wine vinegar to the pan and stir for 1 minute
  • Add the lentils to the pan and stir for 3-4 minutes until totally warmed through
  • Add the peas to the pan and fold them through the filling
  • Taste the filling, season to taste with salt and pepper and set to one side
3

Meanwhile, peel and the quarter the potatoes

  • Add them to a large saucepan and cover with cold water
  • Put the pan on the stove over a high heat, sprinkle in a generous pinch of salt and bring to the boil
  • When the water is boiling, cook the potatoes for 10-15 minutes until tender
  • Drain the potatoes into a colander and leave them to steam dry for 5 minutes
  • Pour the potatoes back into the saucepan, add the butter, milk and mash until smooth
  • Taste the potato and season with salt and pepper
4

Pour the filling in to baking dish

  • Smooth out with a spoon
  • Spoon the mashed potato over the filling and smooth it out over the filling with a spoon
  • Scrape decorative patterns into the potato with the back of a fork
  • Put the Cottage Pie in the oven and bake for 20-25 minutes until the potato is turning golden and crispy
  • Remove the pie from the oven and serve immediately

Tips & Variations

  • Take your time with the onions: We know it's tempting to rush this bit but sweating them down slowly for the full 5-7 minutes makes a massive difference to the depth of flavour in the filling. Don't skip it.
  • Make the mash extra special: Henry always adds a generous knob of vegan butter and a splash of plant milk to the mash and whips it until it's really smooth. A fluffy top means better browning in the oven.
  • Batch cook and freeze: This one freezes brilliantly. Make a double batch, portion it into individual dishes before baking, and you've got future-you sorted on a busy weeknight.

Why This Works

The real trick here is blitzing the mushrooms into a mince in the food processor before cooking them down. It gives the filling that dense, meaty texture that makes this feel like the real deal rather than a sad substitution. We also sweat the onions down low and slow at the start, which builds a proper flavour base that carries everything else.