First clean the beans, wash them and drain. You can use frozen beans straight from
the freezer. Cut the potatoes into large pieces.
Heat half the olive oil in a pot and sauté the chopped onion in it for a few minutes on
medium heat, until it becomes translucent.
Add the garlic, potatoes and the green beans in the pot. Mix all the vegetables
well. Finally add the crushed tomatoes and cover the food. Salt and pepper to taste.
Simmer in a saucepan over low heat for about 40 minutes. After about forty minutes,
add the remaining olive oil and parsley. Boil for another 5-10 minutes until the
potatoes are cooked.
Always check the liquids during cooking and add water if needed.