- In a small bowl, whisk together the brown sugar, soy sauce, and rice wine vinegar. Set aside.
- Heat a large skillet or saute pan over medium-high heat.
- Brown pork, making sure to break it up in small pieces. Drain off any excess fat.
- Reduce heat to medium, and add the onions, carrot, mushrooms, celery, and garlic.
- Cook and stir for 2-3 minutes until vegetables start to become tender.
- Add sauce and heat through.
Source: http://www.theloghomekitchen.com/easy-asian-lettuce-wraps/