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Ingredients
- Dijon mustard 2 tbsp
- balsamic vinegar 1 tbsp
- portobello mushrooms 2
- beefsteak tomatoes 1
- ciabatta rolls 2
- red onion 1
- rocket 2 handfuls
Method
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Step 1
Mix 2 tbsp dijon mustard with 1 tbsp balsamic vinegar. Brush half the mixture over 2 large portobello mushrooms and season well.
Barbecue for 2-3 minutes each side. Put 2 thick slices beefsteak tomatoes on top and barbecue for a further minute.
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Step 2
Spread the remaining mustard sauce over 2 sliced and toasted ciabatta rolls then add the tomato and mushroom, some sliced red onion and a handful rocket to each.
We have plenty of veggie burger recipes here, from black bean burgers to mushroom burgers. Try one out...
