1. Dip a sheet of rice paper a third of the way into a bowl of hot water for about 2 seconds. Turn it and dip remaining section, then lay on a damp towel.
2. Working on bottom third of rice paper, spread a bit of lettuce, noodles, carrots, herbs and pork and/or shrimp. Fold up bottom edge to cover, then fold in the sides. Roll tightly. Continue with remaining ingredients.
3. Combine fish sauce, sugar, ginger, chili-garlic paste and about 1/4 cup water. Taste and adjust seasoning, adding salt and pepper if necessary.
4. Serve rolls right away, or refrigerate, lightly covered, up to 2 hours. Cut each roll into 2 or 3 pieces, then serve with dipping sauce and lime wedges.
Yield: 16 rolls.