In a small saucepan over high heat, bring the stock to a boil. Add the meat and cook for 1 to 2 minutes, tossing often with a large spoon to break up the meat and cook it to fairly evenly. When the meat is cooked, remove the pan from the heat.

Using a slotted spoon, transfer the meat to a medium bowl, leaving most the of the liquid behind. Stir in the shallot, green onion, cilantro, and most of the mint, reserving a few leaves for a garnish. Add the lime juice, fish sauce, rice powder, chilli, and sugar (if preferred); stir to combine everything well. Taste and adjust seasoning as needed for a pleasing balance of sour, salty, and hot.

Line a serving platter with lettuce leaves and mound meat mixture in the center. Garnish with the cabbage, green bean, and mint. And don't miss Kao Niow (Steamed Sticky Rice )Serve at once.