Empanadas Filled with Beef, Caramelized Onions, Potato and Queso Blanco Cheese

filling ground beef, onions, potatoes, peas, queso blanco whole milk, lemon juice, tomatoes, garlic, scallions, salt, paprika, cayenne pepper dough rice flour, water, tapioca flour, eggs, expeller pressed canola oil, xanthan gum, salt, baking powder