- STEP 1
Whizz the garlic, walnuts, herbs, lemon zest and juice with some seasoning in a food processor until finely chopped.
- STEP 2
Cook the spaghetti following pack instructions, then drain reserving a little of the cooking water. Return to the pan and stir in the pesto, raisins and spinach with a splash of cooking water. Serve with a drizzle of extra virgin olive oil, if you like.