In a small bowl, mix apple cider vinegar, sweetener, and salt until well combined. Stir in carrots and onion; let stand at room temperature for 30 minutes.
Cook ground meat, ginger, and garlic in a large skillet over medium heat for 6-8 minutes, or until the meat is cooked completely. Break up the meat into crumbles, and drain any fat from the pan.
Stir in the coconut aminos, apple cider vinegar, sweetener, salt, pepper, and fish sauce.
To serve, drain the carrot mixture. Place meat mixture into the lettuce leaves, top with cucumber, red pepper, green onions, carrot mixture, and mint. Sprinkle with peanuts, and drizzle with sweet chili sauce. Squeeze lime juice to taste. Fold lettuce up to form a taco-like cup, and enjoy!
If you are taking this as an appetizer to a party, keep all of the toppings, meat, and lettuce cups separate and let guests build their own lettuce cups!