If you are using dry cannellini beans, then you need to soak them overnight. Otherwise, you can use canned beans.
Saute` the pancetta in olive oil.
Chop very finely the celery, onion and the tomatoes. Use a food processor for better results. Add to the pancetta.
Saute` for a few minutes and add 1/2 of the beans.
The other half of the beans should be mashed with a blender and added to the pan. Add about a cup of hot water and let everything cook for about 20 minutes. Longer if you are using dry beans.
Separately boil the pasta and when it is Al Dente, add the pasta to the beans.
Cook for another 2 minutes and serve by garnishing with a dash of EV olive oil and fresh black pepper.