Roasted vegetable bruschetta topping

This is one of those staples that can remain in the fridge for a week or two and be called on with ease …
Ingredients
3 red or yellow peppers
1 aubergine
Bulb of garlic – top chopped off so that squeezing out the cooked garlic will be easy.
1 tbsp olive oil
1/2 red onion
1 tbsp balsamic vinegar
100g sundried …