Sue Radd teaches the secrets to cook Greek style beans with tomato in simple steps. First cut the top and tail of your beans and clean them nicely with water. Now nicely chop a big onion and slice thinly some garlic. Now add some oil in a pressure cooker and add the onions and garlic when the oil is warm. Add some fresh black pepper, mix them well and add the green beans to it. Now mix some tomato paste with water rand add them to the beans. Add some diced tomatoes, mix everything well and cook till pressure comes out nicely with its lid closed. Turn off the heat, leave it for 3 minutes and open the lid when the pressure is down. Transfer them to a plate and serve hot.