Ingredients400g chestnut mushrooms50g rice, toasted in a dry frying pan until crisp and then blitzed to a powder in a food processor or pestle and mortar3tbsp Thai basil3tbsp fresh coriander25-30 mint leaves1 tbsp chilli flakesJuice and zest of 2 limes1 tbsp Vegan fish sauce1 banana shallot (or a couple of small round shallots), finely sliced12 large baby gem leaves4 spring onions, finely sliced2 tbsp groundnut oil (or vegetable oil)MethodBlitz the mushrooms in a food processor until finely chopped.Heat a sauté pan with some oil and fry the mushrooms until the liquid has evaporated.Drain off any liquid then mix in all the remaining Ingredients, apart from the gem lettuce, stirring gently so everything is loosely combined, then mix.Fill each lettuce leaf with the mushroom mixture and serve.