Preheat your oven to 220°C.
In a baking dish, whisk together the basil pesto, cream, garlic, and a pinch of salt and pepper.
Toss in the gnocchi, onion, tomatoes, and chorizo sausage, making sure everything is nicely coated in that creamy, dreamy pesto sauce.
Bake for 25 minutes, until everything is bubbly and golden.
Give it a good stir, and it's ready to serve!
