Green bean and olive salad with yoghurt dressing

1 can of green beans
some black olives, roughly chopped
some herbs
spring onion
some pepperoni, chopped

a finely chopped shallot
cover with some lemon juice, salt, pepper, sugar
ideally, let sit for a bit
then olive oil
mustard
and yoghurt

mix, and again, ideally, let sit for a bit before serving.