Wash and clean the string beans, cutting off the tips and break in half.
Sauté the onions with oil or broth until transparent. Abut 5 minutes.
Add the potatoes and sauté for a few minutes.
Add the tomatoes and sauté for a few more minutes.
Add the beans, parsley, water, salt and pepper.
Bring to a simmer. Cover and let it cook for 20 minutes or until the beans are tender. If it has too much liquid uncover and cook until the liquid evaporates and the sauce is thick.
Serve!
Notes
You can use any kind of string bean, all work well.
This can also be a simple lunch with added bread and feta cheese.