Sometimes you have to get your hands dirty, soldier. The green sauce was probably Guasacaca, which many prepare in different ways, I hope your sauce was quite tasty. For that reason, I prefer the empanadas, as they are more closed and everything is not messy, much simpler and more comfortable to eat. I'm glad you tried the arepas and especially my favorite drink: Frescolita. Since making arepas is no big deal, you could try making them at home with your own ingredients, I'm sure it will be much tastier and cheaper. I hope you get a better restaurant with much more variety and better prices.
The Frescolita was delicious and I am glad that I got it. I have had empanadas many times before and I wanted to try the arepas since they are something I have never had. It was pretty good, but too messy to eat. I think it was overstuffed with stuff to make it more appealing to Americans.