Despite the name, these burgers aren't vegetarian but you can easily leave the bacon out if you want to. Try using blue cheese for extra flavour.
6 rashers of streaky bacon, cut into pieces
8 large flat mushrooms
Olive oil
4tbsp sun-dried tomato pesto
100g (4oz) goat's cheese
1 ciabatta loaf, cut into quarters
250g packet mixed salad leaves
1tsp chopped rosemary
1. Preheat the oven to Gas 6, 200°C, 400°F. Fry the bacon until it's just beginning to crisp, remove from the pan and set to one side.
2. Brush the mushrooms with olive oil and fill each of them with pesto, bacon and goat's cheese. Cook in the oven for 5-10 mins until the cheese is beginning to melt.
3. Toast the ciabatta quarters and top with salad leaves, mushrooms and rosemary.