Take the sausage meat out of the skins and add a jar of Ndula Pesto and mix together well. Shape into ball shapes of equal size and cover with clingfilm and place in the fridge for at least 3 hours.
Tip: cold wet hands stop the sausage meet sticking to you.
Prepare your ragu - for some reason, this tastes so much better it is slow cooked for approximately an hour, however, It is perfect just all bunged in the pan if you don't have time! Add a tablespoon of rapeseed or olive oil and gently fry the leeks until soft (about 5 minutes) and then add the grated carrot for 2 minutes before adding the passata or tinned chopped tomatoes.
Meanwhile, fry brown your meatballs in a frying pan. You should not need any oil as the sausages will give up quite a lot. Once they are brown all over then slowly place into the ragu and cover. simmering on a low heat.
Tear up a ball of mozzarella and place on top of the meatballs and cook uncovered in a preheated oven (180 degrees centigrade) for 15 minutes whilst you cook your pasta of choice as per the instructions on the packet.
Serve and watch it all disappear!