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Make this MASH burger for a next level vegetarian BBQ option, or try more veggie burger recipes, such as our easy homemade veggie burgers, falafel burger and vegan black bean burger.

Ingredients

  • 4 large flat mushrooms, stalks removed
  • olive oil
  • 1 clove garlic, crushed
  • 1 block halloumi, cut into 8 slices
  • 4 tbsp mayonnaise
  • 1 tbsp harissa
  • 1 avocado, sliced
  • 4 burger buns, toasted
  • a good handful spinach
  • ½ red onion, finely sliced

Method

  • STEP 1

    Heat the oven to 200C/fan 180C/gas 6. Put the mushrooms onto a baking tray. Mix 1 tbsp olive oil with the garlic and brush all over the mushrooms. Bake, turning now and again, for 20-25 minutes or until cooked and juicy.

  • STEP 2

    Meanwhile, fry the halloumi in a dry pan until golden. Mix the mayo with the harissa.

  • STEP 3

    To assemble the buns, spread both sides with harissa mayo then layer up with avocado, mushrooms, halloumi, onions and spinach. Finish with a bun top.

Check out more of our best veggie burger recipes...

Spiced Falafel Burgers Recipe
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