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Barley-Stuffed Peppers

These barley-stuffed peppers offer a wonderful combination of textures and flavours, making them a satisfying vegetarian main course. The nutty profile of the pearl barley pairs beautifully with earthy sautéed mushrooms and a mix of salty Parmesan and creamy mozzarella. By browning the mushrooms in batches without stirring, you achieve a deep, savoury caramelisation that elevates the entire dish. Finished with a crisp breadcrumb topping, these peppers provide a lovely contrast between the tender vegetable base and the crunchy lid.

Providing a wholesome balance of fibre and protein, this dish is an excellent choice for a nutritious family supper or a prepared lunch. You can easily adapt the recipe by using other grains like spelt or quinoa, depending on what you have in the pantry. Serve these vibrant peppers alongside a fresh green salad or some steamed seasonal greens for a complete, heart-healthy meal that feels both comforting and light.

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Ingredients for Barley-Stuffed Peppers

  • 180ml uncooked barley, or 475ml cooked barley or other grain

  • 2 tablespoons olive oil

  • 475ml sliced cremini mushrooms

  • Kosher salt and freshly cracked black pepper

  • freshly cracked black pepper

  • 60g grated Parmesan cheese

  • 120g small-diced fresh mozzarella

  • 1/4 cup chopped fresh parsley

  • 1 yellow pepper, halved lengthwise and seeded

  • 1 red pepper, halved lengthwise and seeded

  • 240ml bread crumbs

Slice the mushrooms, grate the parmesan, dice the mozzarella, chop the parsley, halve and seed the peppers.

Cook the barley according to the package instructions. Transfer the barley to a bowl and set aside.

Preheat the oven to 177°C and make sure the oven rack is positioned in the centre.

In a large sauté pan, heat 1 tablespoon of the olive oil over medium-high heat. When the oil is hot and rippling, add half the mushrooms and season with a pinch of salt and a crack of black pepper. Do not touch the pan!

After 3 to 4 minutes, use tongs to flip one mushroom. If it's not browned to your liking, give them another minute or two. When they're ready, flip all the mushrooms and cook for another 2 to 3 minutes.

Add the cooked mushrooms to the bowl with the barley and repeat with the remaining mushrooms.

Add the Parmesan and mozzarella cheeses and the parsley to the bowl and stir to combine.

Line the pepper halves cut side up on a baking sheet and season each with a pinch of kosher salt.

Use a large spoon to divide the barley filling evenly among the pepper halves.

Place the baking sheet in the oven and bake until the filling is hot in the centre and the peppers are tender, about 20 minutes.

Sprinkle the peppers with the bread crumbs and bake for 5 to 10 minutes more, or until the bread crumbs are golden brown.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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