Boil a large pan of water and cook Gnocchi according to packet instruction. Heat a little oil in a large frying pan add mince and brown for 5 minutes add sauce and swirl out jar with water filling about 1/3 of the jar. Simmer for 5 minutes.
Add Gnocchi and Basil stir together then pour into a 1 litre ovenproof dish.
Tear the mozzarella over the top. Bake for 20 mins or until the top is bubbly and golden. Serve with crusty bread and a green salad.