1 To make lettuce cups, use a small sharp knife to cut core from base of lettuce. Holding lettuce over sink, run water into base to help separate leaves. Trim leaves into cups with kitchen scissors.
2 Cook pork in two batches. Swirl 2 tsps of oil around a wok or frying pan. Heat until pan starts to smoke. Add pork, stir-fry for about 4 minutes, or until browned and cooked through. Repeat with 2 tsps of oil and remaining mince.
3 Heat remaining oil in same hot wok. Add mushrooms, garlic and ginger. Stir-fry for about 3 minutes, or until mushrooms are tender.
4 Return pork to wok with chestnuts and sauces. Stir-fry until heated through. Add coriander and mint. Stir-fry for a further minute.
5 To serve, fill cups with pork mixture. Garnish with sesame seeds, sliced chilli and mint sprigs.
New Idea Food Director Barb Northwood says: Fun to eat at home, kids will love these delicious filled lettuce cups. You can use chicken or beef mince instead of pork, or you can turn them into a gluten-free meal by using gluten-free sauces. Enjoy!Tip: A great way to keep lettuce cups is to place them in a bowl of iced water in the fridge for several hours before serving.