Beef and Beans with Pasta

• 1 onion
• 1 clove garlic
• 1 carrot

This is all you do: put the onion, garlic, carrot and celery in the processor and turn on for a few seconds until you have a finely chopped orangey-jade mess. (If I’m chopping finely by hand I might, out of laziness or time-pressure, not bother with the carrot or celery.) Cook the vegetables in the oil in a medium-large saucepan for 5 minutes or so, until soft but not brown, and then add the be