1 (6.75-ounce) package uncooked rice sticks (rice-flour noodles)
1/2 cup chopped fresh cilantro
1/3 cup coarsely chopped peeled fresh lemongrass (about 2 stalks)
1 tablespoon grated peeled fresh ginger
2 teaspoons shrimp paste or anchovy paste
3 to 4 Thai chiles, halved and seeded
3 garlic cloves, peeled
2 shallots, peeled
1 tablespoon dark sesame oil
1 cup fat-free, less-sodium chicken broth
2 tablespoons brown sugar
3 1/2 tablespoons lower-sodium soy sauce
1/4 teaspoon salt
1 (14-ounce) can light coconut milk
4 cups thinly sliced napa (Chinese) cabbage (1 small head)
1 1/2 cups thinly sliced green onions, divided
1 cup fresh or frozen green peas, thawed
1 pound sea scallops, halved horizontally
4 cups pea tendrils, coarsely chopped (about 1/4 pound)