If using fresh green beans cut off the tips with a knife. By slowly cutting the tip any threads will come off together with it. Pull gently to remove it all.
If using frozen green beans add to a strainer, give them a rinse, and allow to thaw at room temperature.
Heat 6 tablespoons of olive oil in a cooking pot over high heat.
Add the onion and garlic and drop the heat to medium-low.
Saute until softened and golden in color.
Add the potatoes and saute for 2 minutes more.
Add the green beans and saute them as well for 2-3 minutes.
Add the tomato juice and paste and raise the heat to high. Season with salt and pepper.
Cook until tomato drains stirring occasionally.
Pour in 3 cups of hot boiling water and the remaining olive oil. Drop the heat to low. Try to submerge the potatoes under the water as much as possible.
Simmer covered for about 50 minutes to 1 hour. Check to see if it needs any more water while it simmers. It's ready when the potatoes are tender when you prick them with a knife and the sauce has thickened.
Add the parsley and cook for 1-2 minutes more. Check for additional seasonings.
Turn the heat off and allow the food to rest in the cooking pot for at least 30 minutes before serving leaving the lid slightly open.
Serve with a big piece of feta cheese and some crusty bread, and enjoy!