Mushroom & leek pie Author: Aimee Ryan for Wallflower Kitchen Serves: 4 Ingredients 1 tbsp olive oil 2 medium leeks, trimmed and sliced 3 cloves garlic, minced 500g button mushrooms 1 tsp dried mixed herbs pinch of salt and pepper For the sauce: 1 tbsp dairy-free butter 2 tbsp plain flour 350ml dairy-free milk ⅛