sentence: chop celery into thin slices sentence: chop half of an onion into small pieces sentence: chop a few cloves of garlic into small pieces sentence: add olive oil to a pot over heat and add the vegetables and mix sentence: add sicilian oregano to the pot sentence: add the cannellini beans to the pot and stir sentence: add water to the pot sentence: add parsley salt pepper and tomato puree to the pot sentence: add ditalini pasta to the pot sentence: pour the soup into a serving bowl sentence: garnish the soup with some parsley drizzle some olive oil and grate some pecorino cheese