Defrost your Empanada rounds. Saute the onion, garlic, and green beans in olive oil for about 10 minutes. Add the ground beef until fully cooked. Add the rest of the seasonings and the tomato sauce. cook another 5 minutes. Once the beef mixture is cooked through and has thickened put it aside to cool for about 10 minutes.

Start preparing your Empanada rounds by flattening each one out with a rolling pin. Use about a tablespoon to 2 tablespoons of beef mixture and put it in the middle of the round. Fold the empanada round over the mixture to make a half moon, sealing everything inside. Mix together the cornstarch and water and use it as a glue to seal the empanadas. You can use a fork to seal the edges or simply pinch and twist the edges all the way around.

Fry each empanadas in hot oil for about 2 to 3 minutes per side. They will puff up so pay close attention.