- STEP 1
Boil the spaghetti following pack instructions. Meanwhile, heat the oil in a non-stick pan. Add the carrots, celery and bacon, and stir well. Cover the pan and cook, stirring occasionally, for 10 mins until the veg has softened.
- STEP 2
Tip in the pesto, warm through, then stir through the drained spaghetti with the basil, if using.