Chicken Empanadas

Name: Chicken Empanadas
Ingredients: 2 1/2 tablespoons olive oil; 1 small onion (minced); 1 red bell pepper (minced); 1 yellow bell pepper (minced); 1 tablespoon garlic (minced); 3 tablespoons cilantro (freshly minced); 2 cups chicken breast (cooked and shredded); 1/2 cup chicken stock (or water); 2 teaspoons tomato paste; 3/4 teaspoon onion powder; 1/4 teaspoon cumin; 1/4 teaspoon cayenne pepper; 3/4 teaspoon garlic powder; 1/2 teaspoon salt; 10 empanada dough shells (6-inch rounds); 1 egg (beaten for egg wash)