Clean fresh beans and cut into bite-sized pieces. Cook the beans in lightly salted water for about 10-15 minutes until they are firm to the bite.
Meanwhile cut the onion, garlic and possibly the peppers into fine cubes or rings and sauté in olive oil. Add the tomato quarters and let simmer over a low heat for about 5 minutes.
Now drain the beans and add the balsamic vinegar. Season with salt and pepper, serve. Tastes hot as a vegetable, also good with a dollop of garlic yoghurt, and lukewarm or cold as a salad.