Roasted Red Onion Salad

Recipe for Roasted Onion Salad

Celebrating the natural flavour of good ingredients is something often forgotten about in the world of food. And onions, perhaps more than any ingredient, fall foul of our proclivity for masking flavours.

This recipe for Roasted Red Onion Salad, however, highlights the natural sweetness of the vegetable, combining it with peppery rocket for a simple and mouth-watering salad.

Onions, though great for bulking, are often overlooked as an ingredient to showcase. But the caramelised, sweet and nutty flavour of onions is actually one of my favourites.

Making Roasted Onion Salad

Roasted red onions make an attractive salad too, with their vibrant rings of purple, intersposed with pure white flesh. Offset against a bright background of green, a roasted red onion salad makes an eye-catching side dish.

Not much can go wrong when roasting onions, just don’t bring them out too early. You should be aiming for a soft consistency all the way through. You could, if you have enough time, roast them for longer at a lower temperature. But there’s no need.

For more simple salad ideas, check out my recipes for Watermelon, Mint and Feta Salad, Radish, Watercress and Potato Salad and Beetroot, Pear and Goats Cheese Salad…

Roasted Red Onion Salad

Serves 2-4


  • 3 red onions, sliced
  • 2 handfuls of rocket
  • 2 tbsp olive oil
  • a few sprigs of thyme


  1. Thickly slice the onions in rings, leaving them intact. Transfer to a baking sheet, drizzle with oil and bake at 200C/180C(fan) until soft and slightly caramelised.
  2. Fill a salad bowl with rocket and place the onions on top. Pour over the residual oil and finish with a few sprigs of fresh thyme.


Recipe for Onion Salad

Cost: Onions are cheap. There are few cheaper ingredients. Rocket is relatively inexpensive too. All of this amounts to a salad that should set you back no more than 80p.

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28 comments on “Roasted Red Onion Salad

  1. Manic Family Eating
    January 27, 2015 at 4:29 pm

    Looks lush

  2. ihidemychocolate
    January 27, 2015 at 4:36 pm


  3. Debbie Spivey
    January 27, 2015 at 4:39 pm

    This looks wonderful!

  4. Kristel
    January 27, 2015 at 5:36 pm

    Who doesn’t like carmalised onions?! Sounds good!

    • frugalfeeding
      January 27, 2015 at 10:46 pm

      Thank you – and I agree. You can’t go wrong with a caramelised onion.

  5. Katy Gilmore
    January 27, 2015 at 7:36 pm

    Oh this looks good! I love onions – onions should be in the starring role sometimes – thanks!

  6. Conor Bofin
    January 27, 2015 at 9:18 pm

    Lovely Nick. However, I have a question. Which came first, the jumper or the salad? They go so well together.

    • frugalfeeding
      January 27, 2015 at 10:45 pm

      Haha – a complete coincidence, I assure you. My mum bought it for Katherine this past Christmas. She just so happened to be wearing it when I was shooting.

  7. cookinginsens
    January 27, 2015 at 11:11 pm

    Frugal, you’ve outdone yourself! Perfectly roasted, beautifully photographed.

  8. Katrina Tauchen
    January 27, 2015 at 11:26 pm

    I loooove red onions! This looks delicious!

  9. Michelle
    January 28, 2015 at 12:57 am

    I’m loving this sweater theme! Oh, yeah, and the onions look great, too.

    • frugalfeeding
      January 28, 2015 at 10:34 am

      Haha – thanks. It was just a coincidence!

  10. Liz @ Economies of Kale
    January 28, 2015 at 4:24 am

    Yum 🙂 Red onions are so cheap as well.

  11. Chica Andaluza
    January 28, 2015 at 11:52 am

    Delicious and beautiful and am loving the co-ordinated sweater!

    • frugalfeeding
      January 29, 2015 at 12:06 am

      Thank you – some are saying it was a contrived co-ordination. It was not!

  12. Francesca
    February 1, 2015 at 9:46 am

    Cheap and available, everywhere. Bought them from Korea to Spain and back 🙂

  13. Sophie33
    February 3, 2015 at 1:56 pm

    Simple yet very delicious! x

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