Place a large frying pan over medium heat and toast the sesame seeds or the chopped peanuts until lightly browned. Remove from heat and set aside.
Reheat the pan on a high heat. Add the oil and when hot, add the ground/minced chicken and the garlic and fry until cooked through. Make sure the chicken doesn't brown or clump up.
Add the fish sauce, lemongrass, and ginger. Stir through and cook for another minute before removing from heat.
Allow the mixture to cool slightly before adding the lime juice, red onion (or spring onion), chili, mint, basil if using and coriander/cilantro. Stir until combined.
Spoon the mixture evenly into the lettuce leaves and top with either roasted peanuts or sesame seeds and additional chopped fresh chili if desired.
Notes
Switch out the chicken mince for pork mince.Add chili to suit your taste.Serve warm or cold.Baby Gem lettuce sourced from Coles make the perfect lettuce cupsTastes delicious served as a salad bowl.