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Beetroot Burger with Onion Relish and Homemade Tomato Sauce Fibre-Filled Recipe

bowl of healthy food

Why Fibre? Why Now?

Your gut microbiota, known in simpler terms as the mass of bacteria, viruses, fungi and other microbes living in your intestines, has a huge impact on your immunity.

The best way to keep your gut happy is to feed it a regular supply of fibre, which is found in wholegrains, fruits, veggies and other natural foods

.Plant-based food brand Gosh! Food is your one-stop-shop for fibre. Gosh! has collaborated with talented cook and published author Gem’s Wholesome Kitchen on a range of delicious fibre-filled recipes to keep your tummy smiling all throughout lockdown. Each meal contains more than half the NHS’ recommended daily fibre intake of 30g.

Gosh! Burgers using Gosh! Beetroot Burgers with Carrot, Kale & A Hint of Mint, Onion Relish and Homemade Tomato Sauce

Serves 4

Prep time 10 mins

Cook time 20 mins


  • 2 packets of Gosh! Beetroot Burgers

  • 4 wholemeal baps

  • 1 large beef tomato

  • Pot of hummus

  • Handful of spinach leaves

  • 1 large beetroot, washed, peeled and grated

  • Handful of fresh coriander, chopped

For the Onion Relish 

  • 2 red onions, peeled and chopped

  • 1 tbsp of brown sugar

  • 4 tbsps. of red wine vinegar

  • 4 garlic cloves

  • Cinnamon stick

For the Tomato Ketchup

  • 1 tsp olive oil

  • 1 onion, diced

  • 500g of tomato passata (or 2 cans of plum tomatoes, blended until smooth)

  • 2 tbsps. of apple cider vinegar

  • 2 tsps. of maple syrup

  • 1 tsp of garlic powder

  • ½ tsp of smoked paprika

  • ½ tsp of ground cinnamon

To Serve

  • Potato wedges (optional)


  1. Preheat the oven to 180°C fan and cook the Gosh! Beetroot Burgers for 15 minutes

  2. Meanwhile for the relish, heat some olive oil in a saucepan and fry the red onions for 2 minutes. Add the sugar and vinegar and simmer on a low heat for 15 minutes. Add the garlic cloves and cinnamon stick and cook, stirring regularly, until reduced to yummy sticky consistency. Remove the cloves (if you can find them!) and set to one side

  3. Make the tomato sauce by lightly frying the red onion in a little olive oil until clear, then add the garlic powder

  4. Add the passata, vinegar, syrup and spices and cook for 10 minutes to reduce and thicken. Whiz in a blender or with a hand blender until smooth

  5. To assemble the burgers, spread one half of the bun with a good dollop of hummus. Add the spinach leaves and slice of beef tomato, a Gosh! Beetroot Burger, a dollop of the relish and a sprinkle of fresh coriander

  6. Finish with a drizzle of homemade ketchup and serve alone or with baked potato wedges

Veggie Hack

Add your favourite cheese on top of the burger and pop under the grill for a few minutes to melt.