Prepare the iceberg lettuce cups first by removing the stalk and placing the whole lettuce in cold water.
Loosen lettuce leaves gently and use scissors to cut the top half of the leaf into a palm-size rounded shape.
Drain, pat dry with paper, and place uncovered in the fridge for at least half an hour to dry out moisture.
Soften dried shrimps in warm water, drain, rinse and pat dry with paper; diced the dried shrimps if necessary to match other ingredients.
Soak preserved radish in water for half an hour, rinse and pat dry with paper, then dice small.
Blanch the diced yam bean and carrots in boiling water for 1 minute, drain well.
Heat the wok to medium and stir fry the preserved radish without any oil for 1 minute until fragrant, remove to a plate and set aside.
Add oil to the same wok, heat to medium and saute the dried shrimps until fragrant, then add wine along the edge of the wok, and continue stirring.
Now add the rest of the ingredients in this order: shiitake mushrooms, preserved radish, yam bean and carrot, and red bell pepper. Saute each ingredient for 1 minute before adding the next one. Add salt and blend well.
Then add celery, stir well. Add sauce and blend well.
Stir in peanuts, and serve warm on lettuce cups.