Heat the 6 tablespoons of olive oil in a cooking pot over high heat.
Brown the meat on each side. Adding no more then 5-6 pieces at a time into the pot.
Once you seared and browned all of the meat, set aside in a large bowl. Add the onion and garlic and a splash of olive oil if needed. Reduce heat to medium and cook until softened.
Pour in a cup of water, the tomato paste, and grated tomato. Stir with a flat wooden spoon and scrape the bottom of the pot.
Add meat back to the pot and cover with water.
Simmer for about 1 hour or until meat feels slightly tender when you prick it.
Season with salt and pepper and add the bay leaves.
Add the green beans and parsley and cook for another hour or so. Until beans are cooked and sauce has reduced by half.