To prep the lettuce wraps, make the yum yum sauce. Whisk together the vegan mayo, tomato paste, rice wine vinegar, mirin, sugar, paprika and garlic powder.
Then add the melted butter and whisk.
Now, thin out with water. Start with 2 tablespoons of water and add another tablespoon if needed. Season with a pinch of salt and pepper. Taste and adjust seasonings. Put the yum yum sauce in the fridge and let chill, it will develop flavor, for at least 4 to 6 hours.
Now make a batch of minced "pork", it also needs to marinate for 4 to 6 hours.
When ready to make the lettuce wraps or prep the wraps, cook the minced "pork" according to the directions.
Let the "pork" cool a bit, then either prep for the week, by adding some "pork" to one section of a container, then yum yum sauce to another section and several pieces of lettuce in another section. Keep in the fridge until ready to eat.
If eating immediately, put a few tablespoons of the minced "pork" into a lettuce leaf, drizzle the yum yum sauce on top. Top with chives and sesame seeds. Then fold the lettuce up and eat.