Cook the orecchiette following pack instructions until al dente, about 10 mins. Drain, reserving the cooking water.
Meanwhile, heat the olive oil in a large frying pan over a medium heat and fry the chillies and garlic for 2 mins until just softened. Mix in the butter beans, tomatoes, lemon zest and juice. Cook for 5 mins more, then scatter in the parsley and cook for another 2 mins. The tomatoes should have reduced slightly and the beans should be warmed through.
Tip the orecchiette into the frying pan with the butter bean mixture. Pour in a little of the reserved pasta cooking water if you prefer a looser sauce. Spoon into bowls and sprinkle with the cheese before serving, if you like.
