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A Vegetarian’s Dream Sweet Potato Dinner

This roasted sweet potato with lentils and whipped feta is a vibrant vegetarian dish that balances earthy flavours with bright, zesty notes. The golden, caramelised sweet potatoes and crispy maitake mushrooms provide a satisfying texture, perfectly complemented by a nutritious lentil salad. It is an elegant yet simple supper that celebrates seasonal produce, making it ideal for those seeking a wholesome, plant-forward meal that does not compromise on luxury or depth of flavour.

Packed with plant-based protein and healthy fats, this restorative dinner is a wonderful choice for a midweek treat or a relaxed weekend gathering. The creamy tahini and feta sauce adds a savoury richness that ties the plate together beautifully. Serve this colourful dish as a standalone main course or as part of a larger Mediterranean-inspired feast for family and friends.

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Ingredients for A Vegetarian’s Dream Sweet Potato Dinner

  • 6 small sweet potatoes (garnet yams), halved lengthwise

  • 110ml extra-virgin olive oil, divided, plus more for drizzling

  • 1 teaspoon kosher salt, divided, plus more

  • 1 1/4 teaspoons freshly ground black pepper, divided

  • 120ml black or green lentils

  • 230g maitake mushrooms, trimmed, torn into pieces

  • 170g feta, crumbled (about 150g )

  • 40g tahini

  • 1 small garlic clove, crushed

  • 1/4 cup fresh lemon juice, divided

  • 1 bunch dill, coarsely chopped (about 240g ), divided

  • 2 spring onions, finely chopped

Preheat oven to 204°C. Toss potatoes, 1 tablespoon oil, 1/2 teaspoons salt, and 1/2 teaspoons pepper on a rimmed baking sheet. Arrange potatoes cut side down in an even layer and roast until beginning to soften and golden brown on the cut sides, 15–20 minutes.

While potatoes roast, cook lentils in a medium pot of simmering salted water until lentils are tender but still retain their shape, 15–20 minutes. Drain and transfer to a medium bowl.

Toss mushrooms, 1 tablespoon oil, and 1/2 teaspoons pepper in another medium bowl. Arrange around potatoes on hot baking sheet and continue to roast until mushrooms are browned and crisped and potatoes are well browned on cut sides, 12–15 minutes.

Meanwhile, pulse feta, tahini, garlic, 2 tablespoons lemon juice, half of the dill, 45ml oil, and 60ml water in a food processor until a smooth sauce forms. Add more water, 1 tablespoon at a time, and pulse to combine until sauce is just thin enough to pour.

Add spring onions and remaining dill, 2 tablespoons oil, 2 tablespoons lemon juice, 1/2 teaspoons salt, and 1/4 teaspoons pepper to bowl with lentils and stir to combine. Stir in roasted mushrooms.

Divide feta sauce among plates. Top with potato halves. Spoon lentil salad over and drizzle with oil.

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.

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UK recipe editors

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UK recipe editors

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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