Preheat the oven to 190c
In a large saucepan add a tablespoon of olive oil and place on a medium heat. Add the onions and garlic and leave to soften for 3 minutes before adding in the tinned tomatoes and tomato puree. Bring to the boil and then reduce the heat and leave the sauce to simmer for around 20 minutes, stirng every so often.
Meanwhile time to cook the gnocchi. Fill a large saucepan with boiling water and place on a high heat. Add 1 sprinkle of salt. Once the water is boiling, add the gnocchi and give it a little stir to stop it sticking to the bottom
Reduce the heat to a simmer and leave the gnocchi to cook for 2-4 minutes until all the gnocchi floats to the surface of the water. Once cooked drain and set aside
Once the sauce is cooked down, remove from the heat and add the cooked gnocchi
Pour the sauce and gnocchi into an ovenproof dish and scatter over the basil leaves, grated cheese and breadcrumbs
Pop in the oven at 190c for around 15-20 minutes until the cheese is nice and melted and bubbling
Remove from the oven, leave to cool and then distribute between 4 tupperware boxes. Top with additional basil leaves to garnish.
to reheat. simply place the Tupperware in the microwave for 2 minutes until piping hot