Fearne's Portobello Mushroom Steaks with Miso Butterbeans

Fearne's Portobello Mushroom Steaks with Miso Butterbeans

Co-created with Fearne Cotton, this vibrant bowl stars portobello mushroom 'steaks' seared to perfection. Serve over a comforting butter bean stew, infused with umami miso butter, velvety cashew cream and fragrant ginger and garlic. On the side? Grilled tenderstem broccoli for a hit of green. It's ready in 15 mins!

Ready in 20 High protein 1/3 daily fibre 4 of 5 a day

Serving size

Cook time: 15 mins
Cuisine: Japanese
Food group: Dairy
Allergens: Soya, Milk, Sesame, Nuts

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Cooking Instructions

The protein cooking time listed in this recipe has been updated.

As of December 2025, we’ve revised cooking times for all our proteins to reflect improved food safety guidance.

Check out the latest recommended times in our Cooking Guidelines.

Before you start

  • Preheat the grill to high (240C)
  • Line a large baking tray with silver foil
  • Pull out 2 large frying pans, a sieve, a masher & a measuring jug

Get started

  • Heat a large frying pan with 1 tbsp oil on medium-high heat. Once hot, add the portobello mushrooms and cook for 3-4 mins on each side, until softening
  • Meanwhile, thinly slice the onion. Cut the courgettes into 1/2cm half-moons. Trim the broccoli and cut into thirds

Cook the veg

  • Heat the other large frying pan with 1 tbsp on medium-high heat. Once hot, add the onion and courgette and cook for 5-6 mins, until softened. Season with salt and pepper
  • Meanwhile, add the broccoli to the foil-lined baking tray, drizzle with 2 tsp oil and season with salt and pepper. Grill for 8-9 mins, until soft and golden

Grill the mushrooms

  • Drain and rinse the beans
  • Once softened, turn the mushrooms stem side down and press down with a masher to flatten. Drain the water, then pour over the maple and half the tamari. Turn to coat and cook for 30 secs, then transfer to the broccoli tray and grill for 4 mins

Simmer the beans

  • Add the cashew butter, miso, ginger & garlic paste, the remaining tamari and 250ml water to the onion pan
  • Bring to the boil, then stir in the butterbeans, crumble in three-quarters of the feta and simmer for 2-3 mins, until thickened and melted. Season to taste with salt and pepper

Plate up

  • Thinly slice the portobello steaks
  • Serve the butterbeans into bowls. Top with the sliced portobello steaks and broccoli. Sprinkle over the sesame seeds and remaining feta

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