Lemon Grass Sizzling Saigon Crepes

Source: Mai Pham, Lemon Grass, Sacramento, California

Batter
2 cups rice flour
1/2 cup unsweetened coconut milk
2 1/3 cups water
1 1/2 teaspoons ground turmeric
1 teaspoon granulated sugar
1/2 teaspoon salt
1/2 teaspoon curry powder, preferably Vietnamese Golden Bells brand
3 scallions, cut into thin rings

Filling
4 tablespoons vegetable oil
1/4 yellow onion, thinly sliced (1/2 cup)
4 ounces pork shoulder or chicken breast, thinly sliced
12 medium raw shrimp, peeled and deveined
4 cups bean sprouts
2 cups sliced white mushrooms, lightly saut