Wash the parsley, dab dry and pluck. Put the parsley in a blender jug, except for something to garnish. Add capers, anchovy fillets and olive oil and puree finely. Season with pepper.
Wash the pork tenderloin, dab dry and season with salt and pepper. Heat oil in a pan and fry the pork tenderloin in it for about 10 minutes at medium heat. Meanwhile, prepare the noodles in boiling salted water according to the instructions on the packet, drain and mix with some Salsa Verde.
Cut the pork fillet into slices. Arrange penne with pork tenderloin and remaining Salsa Verde on plates and garnish with chopped chilli, lemon slices and the remaining parsley.