Cook rice vermicelli according to package directions, drain and rinse with cold water, set aside
Heat 1 tablespoon sesame oil in saucepan over medium heat
Sauté shiitake mushrooms with minced garlic and soy sauce for 5-6 minutes until tender, let cool
Prepare all vegetables by washing lettuce leaves, julienning carrots and cucumber into matchstick pieces
Slice avocado into thin strips just before assembly
Mix all dipping sauce ingredients in a small bowl, whisk until sugar dissolves
Fill large shallow dish with warm water for soaking rice paper
Working with one rice paper at a time, soak for 30 seconds until pliable
Place rice paper on damp kitchen towel, layer bottom third with lettuce leaf
Add small portion of noodles, mushrooms, edamame, vegetables, herbs, and 2-3 avocado strips
Fold bottom edge over filling, fold in sides, then roll tightly from bottom to top
Repeat with remaining ingredients to make 6 rolls total
Cut each roll in half diagonally before serving