This is the ultimate vegetarian burger with barbecued mushrooms and onions, fresh tomatoes and spinach and a dollop of spicy tzatziki.
Preparation time - 5 minutes
Cook time - 20 minutes
Serves - 4 people
What you'll need:
- 1 brown onion, thinly sliced
- olive oil cooking spray
- 8 flat mushrooms
- 8 sliced sourdough bread
- 50g baby spinach
- 2 ripe tomatoes, sliced
- 1/2 cup tzatziki
How it's made:
Preheat a barbecue or chargrill pan on medium heat. Spray onion with oil. Season with salt and pepper. Cook for 10 minutes, turning frequently, or until soft and golden. Remove to a plate. Cover to keep warm.
Spray mushrooms with oil. Season with salt and pepper. Increase heat to high. Cook for 2 minutes each side or until just tender.
Cook bread for 1 to 2 minutes each side or until golden and toasted.
Top 4 slices of bread with spinach, tomato, mushrooms, onion and a dollop of tzatziki. Top with remaining slices of bread. Serve.
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