Chop the remaining garlic, heat a little vegetable oil in pan and soften the garlic to a golden colour, do not let brown as it becomes bitter. Add the mushrooms, coat well with the garlic oil, season and saute for 2 minutes. Stir in the artichokes try not to break them up to much add the parsley and coriander. Season again to taste. Heat just through, arrange on top of Crostini and serve.