lumpia recipe

1/2 cup finely chopped onions 1/2 cup finely chopped carrots 1/2 cup finely chopped green onions 1/4 cup finely chopped water chestnuts (optional) 2 cloves garlic, minced 1 egg, beaten 1 tablespoon soy sauce 1 teaspoon salt 1/2 teaspoon ground black pepper Lumpia wrappers (spring roll wrappers)