Chicken and Black Bean Empanadas

Name: Chicken and Black Bean Empanadas
Ingredients: 1/4 cup vegetable oil; 1 small onion, finely chopped; 2 garlic cloves, pressed; 1 teaspoon ground cumin; 1 1/2 teaspoons dried oregano; 1/4 teaspoon cayenne pepper; 1 (15 ounce) can black beans, drained and rinsed well; 1 1/2 cups finely shredded cooked chicken; kosher salt and black pepper; 1/2 cup packed fresh cilantro leaves; 1 (2 sheet) package prepared puff pastry; flour, for rolling out pastry; salsa, for topping; sour cream, for topping; green onions or chives, for topping