Sauce

1/2 cup vegetable broth or water
2 Tbs. low-sodium soy sauce
2 Tbs. sesame oil
1 Tbs. rice wine vinegar or lime juice
2 tsp. cornstarch
1 tsp. honey

Filling

3 large eggs
1 tsp. low-sodium soy sauce
1 tsp. sesame oil
1 Tbs. vegetable oil, divided
1 small red onion, sliced (1 cup)
2 Tbs. grated fresh ginger
1 cup large stemmed shiitake mushrooms, cut into thin strips
2 cloves garlic, minced (2 tsp.)
3 cups shredded cabbage
1 1/2 cups snow peas, sliced lengthwise
1 1/2 cups shredded carrots
2 green onions, thinly sliced on the diagonal

Wraps

16 Chinese moo shu pancakes or small, thin flour tortillas
Large lettuce leaves, optional
Hoisin sauce, for spreading inside wrappers